A brief blurb from an interested outsider:
It seems like Palm hasn't been able to catch a break during all the of the first decade of the 2000's. Despite numerous realignments of corporate entities, including splitting off Handspring, re-absorbing Handspring, splitting off PalmOne, re-absorbing PalmOne, selling the old Palm OS assets, re-acquiring a perpetual license to use the old Palm OS, they just couldn't get it together and release a good, desirable mobile OS to replace the original legendary Palm OS. First they got ran over by Microsoft and Windows Mobile, then by RIM and Blackberry, and then Apple and the iPhone. Meanwhile Nokia's Symbian just keeps on going and going and going. After many years of failed discarded OSes, they finally created WebOS from scratch using the ever-popular Linux kernel, only to run head-on in the unstoppable freight train juggernaut that is Android.
WebOS is a pretty nice implementation of a mobile OS. It's lightweight, visually pleasing, and supports true multitasking. It's also years too late. The future is undeniably Android at this point, with Android phones outselling iPhones 3:1 or 4:1 and with Android likely to surpass iOS in market share by 2012, second only to the unassailable Symbian. Even Motorola, who spent years developing their own Linux-based mobile OS called LINUXMOTO, saw the oncoming Google-powered freight train and hitched a ride as soon as they could, dumping their own software to embrace Android. HTC is all-in after years of producing increasingly irrelevant Windows Mobile devices, and Samsung is looking for a mainstream OS product since their own Linux-based bada OS is going nowhere outside of South Korea. Speaking of Microsoft, Windows Phone 7 may end up going the way of Zune and be a great device which nobody buys, but it will probably mark the end for WebOS in the smartphone space. There just isn't enough room in the "Other" slice of the pie after you've divided up Symbian's, Android's, iOS's, and Blackberry's shares of the market. Microsoft has unlimited resources to prop WP7 up even as everyone ignores it, HPalm doesn't.
WebOS, we barely knew ye. You were cute, and functional, and your UI was really fantastic. Since the main UI designer of WebOS is now working on the UI for Android 3.0 (Gingerbread), we can hope to see a legacy of sorts in Android by the end of this year for the little mobile OS that was good enough, smart enough, and doggone it, people liked it. Just...not enough people. :*(