Manufacturers make a lot of money selling these accessories.

Manufacturers need to synchronize handset releases with network launches.

Carriers have invested a lot of money in their networks. And at this point it's a lot like throwing spaghetti on the wall to see which applications will stick. I doubt there will be any single killer application, but social networking on mobile phones could certainly be one that generates usage.

When billionaire car dealers or manufacturers pay for ambassadorships, at least they pay with money earned by selling something of value.

This is a fairly significant step ahead for Yahoo.

No question that Microsoft has made significant inroads compared to where they were just a couple of years ago _ which was no where.