Google Enterprise vs. Microsoft Exchange

Back in January, I posted about Hosted Exchange. Now considering Google Enterprise instead. All thoughts are welcome.

Here's a link comparing the two from Google's perspective:
Google apps

Mobile Powerhouse

ASUS G53JW-A1     video >>
Intel Core i7-740QM
15.6" 16:9 LED Backlit screen (1920x1080)
1.5GB nVidia Graphics Card GeForce GTX 460M
500GB Seagate Hybrid Hard Drive w/ 4GB SSD Memory 7200RPM
12GB DDR3 1333MHz
2X/4X Blu-Ray Reader + 8X DVDRW/CDRW Super Multi Combo Drive
Backlit Keyboard
Windows 7 Pro 64-Bit

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