Yes, you can apply to multiple programs. Keep in mind though that you may be accepted to one before you hear about the others. Deadline to accept one of these is generally 1-2 weeks after you receive an offer. I got mine on a monday and was told I had til that friday to accept.
Honestly, it's not that hard to get as long as you have the right credentials. People do get turned down for it, but as long as you have good stats and can articulate why you want to go abroad on the applications, you should be fine. 3.0 or higher should be good for it, though I know people do get scholarships with less. Talk to the Project GO coordinator at your school, he/she can tell you if your a good candidate.
If this is something you want to do then definitely go for it. Worse that can happen is that they might say no.
