

The three new processors increase the clock speed over their existing ULV processors from 1.4-1.6GHz to 1.7-1.8GHz while keeping the TDP (thermal design power) at 17 Watts. The TDP is one of the key factors in Apple's ability to fit these processors into their ultra-portable MacBook Air. At 17 Watts, these processors could indeed be used in Apple's MacBook Air.
We previously highlighted Intel's currently shipping ULV processors as likely candidates for the next MacBook Air. These new processors are obviously more attractive candidates with turbo boost speeds up to 2.7-2.9GHz. The new processors are listed here:

CPU World has no word on the launch date of these processors, but Apple's been known to receive Intel parts earlier than other manufacturers. The MacBook Air is rumored to be launching in the June-July timeframe. These new processors would represent a significant boost over the existing MacBook Air processors which are still using the Core 2 Duo processors.
Article Link: Intel Preps 1.7GHz and 1.8GHz Processors Suitable for Next MacBook Air