GlassUp lacks a fair amount of fundamentals that are going to hurt.

1) The green text in the middle of the eye is fairly annoying (at least I think it would be)

2) GlassUp seems to not be very well balanced

3) The inability to send data isn't very promising

4) Google has the best maps/navigation thus far, so it seems the GlassUp would be at a disadvantage (then again for the price who knows, it might be worth it).

5) A lot more intrusive that Google Glass