Most of the US iPhone users are getting notified through a text message that they can use free Wifi access at all AT&T hotspots including Starbucks!
» iPhone users gets free WiFi access at AT&T hotspots
SBSettings is a BossPrefs replacement available in Cydia via the BigBoss source. It is a simple app and it doesn’t add an icon to the springboard. All you have to do is swipe the status bar and a box will slide down the screen with info about your iPhone and also thing in which you want to toggle. More info and screenshots inside.

Only 2 days after the release of Fring, there is already a hack available that allows you to make free calls via the 3G network. Fring has been allowed to the App Store under condition that you can just use it to make phone calls via WiFi networks. But on the Fring forum you can already find the instructions on how to perform the hack.
» Fring hack: Free Skype calls via 3G/Edge
Many of us remember the instant messaging and VoIP application Fring from the 1.1.4 jailbreak community. Well, it’s now come to the official App Store with much of the same features, but a much more polished look. It is available as a free download in the App Store. Link to download is inside. » App Store- Fring

One of the most welcome applications for the iPhone is a Voip application which would allow us to make calls using WiFi. Well the good news is iCall for the iPhone is coming and it will be available officially from the iTunes App Store.

