If you have to state in your opening post that it is a "fair prediction", it's a pretty safe bet that you're just posting flamebait. Kudos for managing to escape mod attention repeatedly in such efforts.
Aside from the that, the prediction is ridiculous on its own. If the ps3 does overtake the 360, it won't be until holiday 2010 at the earliest. Current trends + MS's recent commitment to price cuts overseas and in US, as well as JRPG bundles in Japan, will easily stave off the PS3 over the next two years.
Bluray will be good for PS3 this christmas, but holiday 2009 when we should really start to see the HD adoption rates take off, due to HD library + prices, standalone players will be much less expensive than a ps3. The 'advantage' window for PS3 as a bluray player is slipping away second by second.