I just downloaded textfree and while it looks like a useful app one of the reasons I decided to give it a try was the hopeful possibility of using sms notification services for things such as google calendar so I could receive notifications with my ipod touch without using the limited texting plan on my cellphone. It seems though that with most services entering the textfree address email@example.com does not appear as a valid number. Is there anyway around this? Has anyone else been successful at combing textfree or any other texting app to enable the use of pushing notifications from all the various sms services out there? The only idea I could come up with was using google voice to somehow forward texts to the textfree address. I don't have an invite yet so I don't know if it would work, plus this seems like an overly complicated solution.