I am going to be in Spain for a week or so in December. I have a question which more frequent iPhone international travelers might be able to help me with. When I board the plane from the US, I'll put my phone in airplane mode. When I'm in Spain, I'll turn on WiFi as needed to check email, etc. I can change my voicemail message before I leave to let people know to email me if they need to reach me. I've also moved my business calling over to Google Voice so I can use Skype to make business calls via WiFi and immediately see voicemails left on my business number via email. I can't figure out what to do for text messages though. I don't need to send or even receive text messages, but I would like to let people know somehow that they should email me if they need to get in touch. Is there any way to create a text message auto-responder like most email providers offer?