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Skype (s EBAY) will release a version of its VoIP application for the iPhone and the iPod touch on Tuesday, according to The Wall Street Journal. I was the first to report news of the pending release last week. (Gee, thanks for giving us credit, WSJ and CNET’s News.com.)

If you skip past what is essentially a lot of repackaged information in the WSJ, there are two valuable bits of new information: Skype will use Wi-Fi networks, and calls to landlines will cost 2.1 cents a minute. There is no calling over the 3G network. (Not that AT&T’s (s T) network can actually take any more pressure.)

SkypeIn and SkypeOut, along with Skype Chat, are the key features of this new version of the Skype application. This is a native P2P application for the iPhone and the iPod touch. It allows group chats and conference calls and is tightly integrated with Apple’s Address Book.

As an aside, I wonder how long before special WiFi-enabled Skype phones go the way of the dodo, now that Skype has got mobile religion.