The new iPhone 3.0 software brought with it two features that have been much in demand: MMS, which is multimedia text messaging, and tethering, which lets you connect your laptop to the Internet via your phone's data connection. The trouble was that although these features were now part of the software, they hadn't yet been enabled by AT&T. That's changing, with MMS imminent (and some people already using it) and tethering coming in the not-to-distant future. iLounge posted a helpful article today titled Sixteen things you should know about MMS and Tethering. If you're interested in either of these features, you'll want to read this article.