The folks at HackNDev have managed to port Linux to the Tungsten T3! It’s primitive at the moment – no support for the off button, slightly flaky SD card driver – but boots easily enough to a graphical environment you can actually use. The one (expected) downside is that it wipes your RAM, so you need to hard-reset to get back to PalmOS, and restore from backup to get your PalmOS information back.
Thanks to the folks in
#hackndev on irc.freenode.net for helping me get Linux booting on my T3.
I’ll be interested to follow the work on the power-button support and other hardware-level features: I’d eventually like to get Squeak running.