@nadnerB said:
An interface to keep pace with SSDs 🙂
M.2 is interesting not just because it can speed up storage with PCI Express lanes, but because it can use a whole bunch of different buses too; it stands to replace both mSATA and mini PCI Express
http://arstechnica.com/gadgets/2015/02/understanding-m-2-the-interface-that-will-speed-up-your-next-ssd/
It doesn't actually look like it will be revolutionary. It seems to be more along the lines of an adapter or go between. It still uses the same buses and still has the same limitation of the technology that it is integrated into. Will be cool and usable for the mini-pc and laptop markets but I doubt it will replace SATA in the near future.