I have the T&B pochette and love it. Used to hold my passport and ipod but now that my french wallet is is for re-sticting, I'm using her for money and cards. My gf as the wapity and regrets buying it. She says it's not really big enough to hold anything!
I guess it depends on what you want to put inside the case. I love the wapity for my digicam or my cell and a lipstick. (I didn't realize the t&b mini pochette was so much roomier than the wapity). I have an enV phone and it fits nicely. Check out the wapity club thread to see lots of pictures!