Millennial reckons Kindle Fire's activity in its ad network is outpacing original iPad launch

If news the first BlackBerry 10 handsets aren't likely to see the light of day until late 2012 left RIM aficionados with a bitter taste in their mouths, Millennial Media's assertion the platform is enjoying a fightback in the US might just sweeten the deal.

The reasoning behind RIM's sudden share spurt is unclear, but numbers taken from Millennial's smartphone OS mix suggests BlackBerry held 17 percent of its advertising market in November – up from October's tally of 13 percent.

BlackBerry's bounce is even more notable given it comes at a time when Android appears to be shedding its share.

After topping out at a 56 percent share in September and October, November saw Android's share drop to 50 percent, with BlackBerry and iOS – which jumped by 2 percentage points to a 30 percent share – the benefactors.

"Impressions from the Kindle Fire have grown at an average daily rate of 19 percent since its launch several weeks ago," reports the firm.

"We're not just seeing millions of impressions, we're seeing a monthly run rate of hundreds of millions of impressions. The Kindle Fire's impression growth on our platform has slightly outpaced that of the iPad when the iPad launched in early 2010.

"Though the Kindle Fire has been introduced into a more mature tablet market than the market which greeted the original iPad, the integration of Amazon's robust digital entertainment library and the $199 price point may also have helped drive this early use by consumers."

On the smartphone front, Apple remains the largest manufacturer with a 25.7 percent share of the market, ahead of Samsung on 17.5 percent and RIM on 14.6 percent.

You can read the full Mobile Mix report for November on Millennial Media's website.