The only offering in the Palm lineup might be the W. Others have issues with the SD cards (drivers...)
http://www.expansys.com/forumthread.asp?code=H1910&thread=16 is a clue you don't want to get some device and then a Wifi card. Not all wifi cards work in all units.
I looking to buy a PDA since my old Palm VII broke. I am a student and have no idea what to get. I'd like a PDA that I can hotsync stuff I write straight to the computer and print. I don't know whether to get a palm OS or Pocket PC, but whatever I get, I want it to have games, and Wi-Fi, if possible. I would like a color screen, and a lot of memory, since I play MP3's a lot. Could you help me out?