Finally an official Skype application will soon come to the iPhone and BlackBerry handsets. The iPhone will get it this Tuesday, while BlackBerry owners will have to wait until May.
The official build will not require additional audio transcoding, will use only Wi-Fi instead of EDGE or 3G, and will support calls to SkypeOut contacts in addition to many other features available on the desktop client.
Note that iPod touch owners will require earphones with an embedded mic (or a headset) to talk.
A hands-on preview of the Skype App can be viewed here.