I just had to go through the same discussioin with myself. My "new every 2" was up on the 28th of June and I had been drooling over the 700W ever since they came out. Then as things got closer, wouldn't you know it...out comes the Q! Geez...more decisions. After much aruguing with myself, I decided to stick with the Treo 700w
I can tell you for me, the deciding factor was 2 things:
1. the Q runs the SmartPhone operating system while the Treo runs the full=fledged Windows Mobile 5. As I did my research,for me, the BASIC difference is that Smartphone OS can view all MS office documents but you can't work on them. I saw on a writup somewhere that it may not display those documents quite right either.
2. The Q didn't have a touchscreen while the Treo does. I just saw that as a potential problem.
What was a consideration, but I decided to check it out anyway was the screens. The Q says it has a better resolution (240x320, I think) while the Treo has 240x240. Write-ups say the Treo's screen is 'washed out'. Well...I held both in my hands and I sure as hecked didn't see the difference. Maybe it was slightly...and I emphasize *slightly* better, but the difference was so minute, I couldn't tell the difference.
A couple of things that come to mind. On the Verizon site, you can do a side by side comparison using their "compare" option. That may help you. On thing, however...Verizon lists the Q as having national access while the treo...not. I asked what that meant and they said if go into an area that only has access to the slower data network, the Treo won't access that. Well...that's wrong. I took mine just the other day on a trip and part of that trip was in a 1x area, and it worked fine. Also the site lists the Q as having an MP3 player while the Treo - it says 'na'. I asked about that and they said you can play the Q straight from the internet and the Treo, you have to download the MP3s. I still dont' know what the heck they were talking about. I put all my music on my storage card and it plays using WM10 just fine.
You mentioned email/web and camera. I suspect both the 700 and the Q will be pretty much neck-and-neck there. I didn't understand it at first, but now that I got how Verizon handles the email, I like it a lot. I've set up my gmail account to go to my Treo directly, but I can access my home email anytime I want. Verizon also has direct push technology that is also available for your POP3 accounts too. I thought that was cool, but I don't particularly need that.
One of the posters also mentioned the 700p. That's an option, but I've had a PDA with the Palm OS before and I didn't care for it. You can put "Documents to Go" on the Palm to be able to work with Office documents, but that's a 3rd party app. I liked that WM5 deals with them nativley, I also read that you can't multitask with the PALM OS, but I can't verify that for myself.
Anyway, sorry for rambling, but when I saw this question, I thought..."yeah, I jsut went through the same thing. So it all boils down to what you want from your smartphone. Personally, The Treo 700w was it for me!
Hope this helps a bit!