Not for the "mainstream," but there will be growing momentum. Here are several mobile-related posts:
SiliconBeat on mobile couponing from Cellfire
John Battelle writes about mobile initiatives, specifically Medio, in a couple of recent posts
Here's Search Engine Journal on Google and Opera for mobile devices
Mobile is coming, but not this (2006) year. The pieces are still falling into place: network speeds, devices, databases. But they will fall into place. Then the question becomes: What is the business model to support it (fees, coupons, sponsorships, PPCall, PPClick or all of the above)? TBD.