This is by far the best PDA I've ever owned. My first PDA was a Palm IIIe, then a Palm V. The Treo 600 is far superior.I like the thumb key pad much better than using graffiti. The Treo600 is very lite. The ability to add a SD card is a nice feature too. You can move files and apps to it. I really did not want a camera phone, but I've found that I use more than I thought I would. It's nice to have a camera for those moments when you wish you had one. For instance when my son makes a huge mess and has that "What happened here" expression, I take a picture of him and send to my in-Laws. I like to download trial software and the base memory is only 32MB which limits how much software you can try at a time, but I added at 128MB card. After registering the Treo600 with Palm One, they sent me a link to download a free MP3 player. I also found out yeaterday that there is software to encode DVDs to play on the Palm. The web brower works find. I can access my bank account online and purchase from sites like Amazon. The business Connection software allows me to receive my email on my PDA. The battery lasts a decent amount of time. It has a larger screen, and navigation is basically the same as the Palm V and Palm IIIe. The phone works fine. The speaker phone works well. Before the Treo 600, I carried my cell and PDA. Now I carry one device on my hip that serves both my needs, a PDA and a Phone.Palm One has done a great job.