How about adding a PDA forum? or even adding it to the Portable Computing section, i.e. Portable Computing / PDA or something. I know I'd love to see a place around here where I can get stuff about PDAs.

Taken from the Portable Computing Forum Discription:
Laptops and PDAs, and all those nasty little gadgets.
Seems to me like what you are looking for has been there all along :). Well Porable Computing wasn't originally there when we switched to vBullitin, but it was the first thing added.

Covered already but thanks for the suggestion anyway Cryo ;)