Rumours have it that a long-awaited Skype application for the iPhone will be announced at CTIA Wireless next week. The word comes through a tipster via GigaOM and it would seem to be as good a time as any with the mobile industry trade event just around the corner.

VoIP and IM aggregators currently on the iPhone already allow Skype account use but with over 400 million Skype log-ins in existence, you can bet there are a tonne of people out there who haven’t woken up to the likes of Nimbuzz and Truphone or just plain don’t want to use them.

There’s currently no threat to most carriers but with unlocked iPhone on the horizon and PAYG handsets, it’s another reason for the networks to start tremmoring

(via GigaOM)