Wouldn't this make your service a target in the same manner as the digital currency exchanges who have recently lost their domains and/or bank accounts?
That's a good point. I prefer not to comment on legal aspects at this point, but it's definitely something I have on the radar!
Do you need coins already in other wallet to be transferred to the application wallet?
Yes, you do. It's Bitcoin in, Bitcoin out, no other way to fund the wallet. One might imagine this to be used in combination with a Bitcoin ATM: Let the machine scan your Bridgewalker Bitcoin address, put bills in and a few seconds later have the equivalent amount in Bitcoins, exchange rate protected, to be used at a later time.
Kudos for putting an idea to test in the field so quickly
Thanks! ;-)