There is a rumor floating around the blogosphere that Apple has released the “alpha” iPhone SDK to some developers. Electronista claimed a reliable source has informed them that Apple has given some companies access to the rough version of the tools. The software development kit or SDK allows application developers to create native iPhone and iPod touch software. The source said current rough version of the SDK has clear limitations, although no details information on what limitations they are. Steve Jobs announced to the world in an open letter that an iPhone and iPod touch SDK would be release in February 2008.