A MacBook pro 17'' in June?

Launched by Apple Insider, the word has started to spread on the web: a MacBook Prp 17" will supposedly be available in June.
A reason why this computer won't come out before is the shortage of the very slim, specific type of DVD burner it requires, as we wrote on 12 January.
This is a bit of a worrying information. Apple is now competing hard with Wintel computers manufacturers. If proof is needed just look at how quickly Steve announced and delivered the first Core Duo configurations.
Yet, according to Intel's roadmap, the heir to Yonah will come out sometime in October, which would have Apple renew its configurations lest they become outdated. Do they really want to start delivering in June a computer that'll become obsolete four months later?
This we'll have to wait a few more months to know.