Mutt... we launched StatsRemote in May this year, beta testing started in February with about 50 people.
AFAIK RevStats was launched in fall last year... might have been earlier though, I don't know.
We contacted all sponsors and cc processors that were included in the first release before we launched it. Actually quite a few helped us beta testing the software and also made sure that we don't collect any personal data and don't have access to their webmasters' accounts.
Usually the programs and processors don't have to do anything to be included. StatsRemote just logs into the stats areas and gathers all relevant data.
After we released the software many sponsors actually contacted us because their webmasters asked them to make sure to be supported by StatsRemote
