Nvidia is shaping up to become the main competitor in the tablet CPU space. The Tegra 3 will have 4 CPU cores and 12 GPU cores with about 5 times the performance of the Tegra 2. Apple is getting into a performance race with Nvidia and the Tegra line is becoming increasingly hard to beat. Should Apple buy Nvidia outright? This would be a massive setback for all iPad competitors and it would add valuable expertise and IP to Apple's portfolio. Nvidia's market cap of $8 billion is just pocket change for Apple.