Comscore reports (via AdMob):

• there’s now 45 million smartphone users in the US, up 21% in the last 3 months
• Google/Android is the big winner, having over doubled its market share to 9% over the last quarter
• RIM and Apple hold stead in terms of share, meaning their absolute numbers are still growing
• Microsoft and Palm are the big losers, and are likely to continue to do so

Discover Anywhere Mobile notes:

• the rapid adoption rate of smartphones is a sign that many people are choosing to replace their cell phones with something more modern: expect smartphones to dominate the market in the next 2 to 3 years
• we expect Apple to start growing market share again after they release a version that does not depend on the AT&T network
• Palm blew it
• Microsoft will make a recovery next year after Windows Mobile 7 becomes available, but not until its share drops to Palm-like numbers