Oh god there are a lot of games up there now... Here's my latest half arsed musings:
Adventure Pets HD - Arcade Platformer
Graphics are good, but I'm not sure how well the gameplay holds up outside of multiplayer as you need the urgency it adds. Something doesn't feel right about the way the chars move, but I can't quite put my finger on what it is. Worth giving it a go if you're looking for some competitive multiplayer but I'm more of a single player kind of guy. Deleted trial.
Bomber Boing - Multiplayer vs Battle
Very basic gamplay, very basic graphically. Fast paced combat, but I don't really see any appeal. Deleted trial.
Cosmos - 2D Competitive Shmup
Not a lot to say about this right now... the visuals are basic but it has an interesting gameplay mechanic. Will play trial again.
CaveIn - 3D Puzzle Game
Good tutorial levels give a nice indication of what the game is about. Some graphical roughness but overall it's well presented and more importantly, fun to play. Purchased.
Couples Sudoku - Sudoku
As previously stated, Sudoku really isn't my thing so I'm not the right person to comment on the game. Give it a go if you're into it I guess. Deleted trial.
Dr Popper - 2D Puzzle Game
Well presented, clean, crisp visuals. Game itself is simple but fairly challenging. Would be a potential purchase but lacks one important aspect of a game where high score is the object... a high score table. Deleted trial.
EZ Muze Break and House Edition - Loop based music creation tool
Not my sort of thing but I managed to create some reasonable sounding tunes. Deleted trial.
FallDown - Competitive multiplayer platformer
The first time I played this it loaded the first level, which apparently I won (I didn't do anything). This unlocked a new char and the "Buy Game" screen appeared. Pressing B to cancel buying quit out of the game. I thought this was a little strange so I tried again... and it did exactly the same thing. Deleted trial.
Fireplace - Ummm... Fireplace simulator?
I'd download a video if I wanted something like this. Also, I really don't like how this was able to automatically send me to the "buy the game" screen without needing my interaction. Deleted trial.
Golden Royal Blackjack - Blackjack
Interface seems ok, though there are some annoying delays while the game checks for Blackjack. I don't really see the appeal but if you like Blackjack you should probably give it a go. Deleted trial.
Graph Spacer - 2D Shooter.
Love the graphical style. Shooting method took me a while to get used to but I think it's quite a novel take on the usual two stick methods. Tutorial is well done but I didn't really enjoy the game that much. Certainly worth a look though. Deleted trial.
Hexothermic - 2D Puzzler
Very chilled out game. I'm not really sure I've got that good a handle on the gameplay yet but it has managed to get my attention. Visuals are clean and the audio is good, especially when you get a chain reaction going. Full clears are very satisfying after you've taken the time to set them up properly.

I'm also a fan of the pseudo achievements. Would have been nice to see a couple of the puzzle levels in the demo (they're good btw) but what I did see was enough to easily justify 200 points. Purchased.
Ladybird Galaxy - 2D score battle
Clean, consistent interface and pleasing visuals. Gameplay is simple but it becomes challenging quite quickly. Will play trial again.
Light Catcher - Drop puzzler (of sorts) / reaction game
Very, very simple game and very basic visuals. Might appeal if you like high score challenge games. Deleted trial.
Petank Party - 3D arcade style sport sim
Good graphics for a XNA game, though a bit rough around the edges. Was quite fun in local multiplayer. Will play trial again.
Retro One - 2D side scrolling Shmup
Very basic, but fun in a retro sort of way. Quite hard in places too. Deleted trial.
RPaints - Umm... it's like paint I guess
Deleted trial.
Sea Blast - Action / Shooter
Graphics are ok, I didn't really get into the gameplay though. Seems to be another one for the fans of multiplayer games. Deleted trial.
Shed - Card Game
I'm not really into card games so I'm not the right person to comment on this. Deleted trial.
Starfield - Vertical Scrolling 2D Shmup
The repeating beats in the BGM make me want to punch kittens. Graphics are basic but functional. I got bored fairly quickly with this one... it needs some weapon options and maybe a few more interesting enemies (perhaps they come later, I don't know). First boss was laughably easy. Deleted trial.
Torino X - 3D Space Shooter
Basic, but functional 3D visuals. Unfortunately my trial time ran out before I had enough money to set up any defensive structures. A good little game idea, but it's hard to fly your ship with any sort of finesse and it's even harder to get a sense of speed. Also, there's really not enough feedback to let you know how much damage you're doing / have done to a target. Deleted trial.
Tower Revolution - 2D Tower Defense
Extremely basic, but also sort of compelling. The controls could be better explained, as could the upgrades for buildings. Probably needs a good tutorial, or if it has one... I need to look for it. Will play trial again.
Type Attacks - Typing Game
I tried it with the message pad which was fairly interesting. The bombs / city idea works pretty well, but I'm not sure about the overall interface. I think it could have been better with a polished 2D interface, and certainly easier to see the words. Will play trial again with a proper keyboard.
World Molder - Puzzle Platformer
Very basic visuals and the menu system is very busy. The general idea could work, but as it stands moulding the blocks is unpredictable and awkward. Deleted trial.
Writers Block - Point N Click Adventure
Menus look nice and the graphics overall are pretty good. Unfortunately the actual interface is pretty clunky. Where it really falls down is the writing, which is obviously a very important part of this sort of game. I don't know if it's down to a bad translation but even in the demo there are a number of grammar / spelling errors. I would have liked this to be good as it's ages since I've played this sort of game. Deleted trial.