Google added sms feature to GMAIL and pulled back because of bugs. Looks like they will bring it back in a couple of weeks after fixing the bugs. I think sms through gmail will be very interesting – specifically if it works well on gmail mobile version – imagine a world where SMS will be free (and too without going through any complicated process).
Gmail already incorporates email, IM, documents, calendar and now sms. Should we still call it an email platform? I think Gmail has turned into Universal Messaging Platform and going forward new ways of messaging & communication will be integrated. So I guess the time has come where we can formally announce the death of email as we knew it…..