I cant say much as Budney and Big D5 put it so well
Both are fun devices. The 6700 was great when it was the only device in town, but the 700wx just works better for me.
re: the keyboard on the 700
Yeah it feels tiny and tough to type on and even an experienced Treo 650 user like myself had some adjustment time.
You get used to it quite fast. I love the quick access, being able to respond to an SMS or IM so quickly.
I do have to say though, the "flash" on the 6700: totally worthless. Well, not totally as it makes a great flashlight. But for pics? Bah! It's awful. I had better experience using CoolCamera by ATEKSoft and their "night mode" then I ever did with the "flash" on the 6700.
Either way, I consider the 700wx camera superior. Not by much, but just enough.
Pic Taken with my 700wx. This is my car.
*
*This is a total lie. It was some random car in the area. Notice the "handicap" sign in the window though.