I use a PDA for more than just medical stuff. I just got mine and I'm entering med school next year. This is my 3rd PDA
I have my whole life on it. I also know that it won't be obsolete by the time I hit 3rd year unless a completely new technology comes out that makes all current computers utterly useless. Not gonna happen. Windows Mobile 5, for example, just recently came out and should stick around until 2008. If a new Windows Mobile comes out then, you can be pretty dang sure that software will continue to support 2 or 3 generations back (look now; WM5 along with 2k3 and 2k2 are all listed under essentially all programs). If you don't plan to use a PDA for anything but med, then yeah, wait; however, you are severly limiting its use in that event. PDAs can do anything computers can nowadays. Mine is the VX6700 (google it), I do internet both wireless and cellular, email, chat, phone, video, mp3, note-taking, voice memos, camera both video and still shot (not professional, just for convenience), scheduling, tasks, remote desktop and VNC, address book, bluetooth apps, and on and on and on. If you are the kind of person that's willing to put the time into learning how to utilize a technology, I wouldn't wait. I will also say that they are expensive if you don't spend a lot of time trying to find the best thing for you at the best price (and even then, they're hefty). So, plan accordingly. Personally, my use makes it worth cutting my food allowance a bit ;-).