It appears that AT&T might announce iPhone tethering plans at Macworld. The AT&T iPhone-as-modem plans would reportedly include a 5GB data cap and would priced at $30 per month. Data card pricing plans are double that. Tethering allows you to connect your laptop to the Internet using the iPhone's 3G connection.

Official word could come as early as tomorrow. Stay tuned for complete coverage of the Macworld 2009 keynote and beyond.

via TUAW