There is rumor in the industry that Google may be looking toward Texas Instruments for developing the next Android OS, Ice Cream Sandwich. Apparently, even though NVIDIA has seen great success with the Tegra 2, there are still some problems with their chipsets that have made Google rethink their future partnerships. In fact, their is speculation in the industry that many of the problems with 4G networks are caused by NVIDIA's Tegra 2 chip.
The source of this story also praised Texas Instruments for being timely and reliable. The source further commented that,From what can be gleaned from the source, there has not been any kind of "falling out" between NVIDIA and Google, but Google is simply keeping their options open and going with the best competitor at the time. The same source further speculated that Google is considering Texas Instruments for the next iteration of Android after Ice Cream Sandwich, and that it will be called "Jello."Nvidia seems to have run out of steam, lacks engineers and has come up against a bit of an innovation wall.
There may be some teeth to this rumor. Word on the street is that the "new" Motorola Droid Bionic has switched to the TI OMAP 4 CPU. Interesting... we will keep a close watch for any info that may corroborate these rumors.
Source: SlashGear and RCRWireless Part 1 & Part 2