Skype 3.0 has just become available, in the Gold version on Windows Mobile phones and it can be downloaded from here. The software comes with 2 new and cool features: SMS and file transfer.
Skype 3.0 can also run on Nokia N800/N810, various other mobiles, the iPhone and PSP. The above mentioned file transfer feature allows the user to send spreadsheets, photos, music and any other files Skype-to-Skype, while the ability to text via Skype will connect you to folks abroad, avoiding the huge charges applied otherwise.
Skype 3.0 also brings free Skype-to-Skype calls, free instant messaging and support for calling phones and mobile using Skype Credit or a subscription.