An announcement is being made for the Zenfone 2 on May 18th for the US market. It's the first device to feature 4GB of RAM and has already been available in Taiwan and China for some time now. Some people think that's overkill for RAM, but it helps make the phone zippy as heck even with an Intel processor.
Yes, the Zenfone 2 is the first phone to feature 4GB of RAM. The main drawback is its user interface. The software is filled with bloatware. The rear volume buttons are not as tactile as the ones seen in LGs devices. Also from MKBHD from YouTube pointed out that it has the worst placement of the power button in a phone ever, that is at the top. Still for $299 unlocked, you can't argue with the value for money it offers.