HP's ill-fated TouchPad may be a hot commodity now that it's being offered at fire-sale prices, but those lucky enough to get their hands on one could soon find themselves with more choices than they ever imagined.
WebOS is the operating system that comes preloaded on the device, of course, and I maintain hope that that Linux-based operating system will be picked up and continued by another company, preferably in open source form.
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For those concerned about WebOS's fate or even just its relative paucity of apps, however, two new possibilities have just emerged. First, it's already possible to get Ubuntu Linux up and running on the device, and second, a project is now in the works to port Android over as well.
The Ubuntu option
On the Ubuntu side, instructions have already been posted on Liliputing for installing Ubuntu Linux on the TouchPad alongside its existing WebOS operating system. Basically, it sounds like you're creating a dual-boot scenario so that you can choose which to run.
PreWare, Palm Novacom, Xecutah, and Ubuntu 11.04 CHroot are all part of the process, which is reportedly not for the faint of heart. Nevertheless, the end result is a command-line version of Ubuntu Linux that can be used with apt-get install to install various Ubuntu software packages.
An Android alternative
Aiming to get Android up and running on HP's device, meanwhile, are several hacker efforts, including the nascent Touchdroid project on RootzWiki.