Manufacturers need to synchronize handset releases with network launches.

Manufacturers make a lot of money selling these accessories.

Users are less likely to switch when it means replacing a functioning home network.

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.

Microsoft in the long term wants the kind of strong position in mobile devices that it has in PCs,