I'm still using my iPaq 4150, and haven't seen enough advances in recent ones since I purchased it to warrent an upgrade. I did buy my wife an iPaq rx1715, but it didn't have integrated wifi or bluetooth, so she wanted an upgrade. I then picked her up an iPaq 4700; now this is a powerhouse of a PDA, but it was a bit larger and heavier than my svelt 4150. The screen on the 4700 is phenomenal and since it has WM2003SE on it, you can switch to lansdcape mode with the push of a button; nice for surfing the web or reading e-books. I don't really use my PDA's for MP3's (did a while back, but then I picked up a dedicated/smaller MP3 player), but it's great for palm-sized movies on the go. I also use it quite a bit for PIM functions, like mobile calendar and contacts. I had a SmartPhone in the states, so it pretty much took over most of those functions since it could sync with Outlook, but when I came here I had to revert back to the iPaq since I couldn't find a carrier I could use it with here. There are a ton of apps for the WindowsMobile platform, and many coming out weekly, so I can use it for more than simple PIM functions; i.e., play games, watch movies, study new languages, wifi discovery, pocket translator, et al.
While I love the size/weight of the PDA, I am actively looking for a replacement UMPC to take over the roles, it's just a matter of time when they develope/market a product that has what I want; i.e., instant-on, good size-to-weight ratio, easy input, and decent power consumption. Maybe the OQO v2 will meet some of these?
