the best Ive found, but..

this app crashes pretty consistently. its the best iphone to gtalk app that Ive found so far, and I even bought the full version, but it crashes about once a day and at least once a week the push notifications stop working. this usually fixes itself with an iPhone restart, but every couple of months I have to delete the app and redownload. SO frustrating.

mlgorham about Katoo for Gtalk Hangouts