HearPlanet turns your iPhone or iPod into an audible travel companion, with audio tours of over 230,000 locations from around the world. Free during Macworld, in which case after Macworld ends the application goes back to the $3.99USD price tag.

Get the download link from their official site.

Yep, it’s happened. the iPhone Dev-Team has finally unlocked the 3G iPhone. Using their software, it’s possible to use another carriers SIM card in your iPhone. Success seems to be hit and miss, although the latest version (0.9.6 beta) seems to be having great success.

Jail break your phone, install Cydia and then install yellowsn0w via Cydia.
[ Link ]