I've been playing with different builds of linux for the helio, and thinking about how debian could be shoehorned onto the ipaq. Linux on handhelds is definitely interesting, and I want it to be my favorite linux distribution eventually, not some hack (no offense at all intended toward the fine work of pocketlinux, vhl-tools, and others), that runs in my pocket.
But right now the high-end versions of these devices are limuted to 16mb of flash, not enough for a base debian install even. (Ipaq's can use a microdrive too, which would maybe be doable for debian). I want one with 64mb of flash, or at least 32.
I'm sorta trying to decide if I want to sink time into this now, or wait a year when hopefully, memory sizes will have doubled, and all the early adoptors will have done all the hard work.
Sounds pretty coldblooded and not in the hacker spirit, but I already have too many projects. Anyway, I'll probably find some medium -- hack on it some this year, and more when these devices get a little beefier.