Review?
I'd be interested to read a thorough review of this service, particularly if it becomes viable for private-to-private trade like PayPal. So many people put up with the sub-standard scamfest that is PayPal that there is a clear market for a secure, reliable alternative.
Considering PayPal is a financial service it is frankly astonishing how unregulated it is - if it was a service provided by NatWest, for example, they would have had their unmentionables sued off by now.
Personally I have stopped using PayPal entirely and never use eBay except with cheque payment, and would recommend any sane person do the same, financially and technically astute or not.
I sincerely hope that Google, or anybody else with half a brain cell, launches a viable alternative as soon as possible.