I think this topic should be a sticky.
With the next batch kickstarter/indiegogo users coming I forsee a lot of can't connect/wifi/power topics, this can be a (help) topic for user facing power problems.
When I received my Omega2+ I had the problem that after 20 seconds the led went out.
I used the recommended lm1117, breadboard and wires as power supply.
After some advice on this forum, i shortened the wires from 20cm to about 5 cm each and I added a 470uF 16v Capacitor.
I finally saw the Wifi Acces point in windows so i: