I would like an invite also.  I have a Verified Paypal account.  You might be able to offer different levels of service based on the amount of information you are making the transaction with.  Quite possibly small trades for unverified.  Larger amount for verified and even larger for verified and photo ID or something like that.  I get payments from ebay into paypal and would love to make it easier for me to go from paypal to bitcoin.  It takes a long time to transfer to dwolla or other payment for different exchanges.