Push Google Voice SMS and Twitter Messages to iPhone With Prowl, No Growl Required

While Prowl's designed for push notifications from a computer running Growl—opening up a world of possibilitiesGVMax and Prey Fetcher push Google Voice SMS and Twitter messages via the web, without your computer running Growl 24/7.

The downside is that you're trusting your Google Voice and Twitter logins to third-party services, but if you wanna get push notifications about @mentions or DMs from Twitter or SMS messages from Google Voice without keeping a computer running at home with Growl whenever you're out, they're the way to go.

Any other services that use Prowl this way? [GVMax, Prey Fetcher, Thanks Zachary!]