I now have a mobile USB dongle with me, and I have tested its stability. I was able to use it round-the-clock last Monday (and got a YouTube Hangout made using it).
So far, this is what I will use to make conversations with my comrades over Google+ Hangouts - I will just top this one up, since this is a prepaid modem.
So far, I am using it to gather more info in regards to AniStats, publish posts online, and get free ebooks at Amazon for offline use. Nice one.
Also, since we’re in the hills (and there is limited network congestion) over here, I’m quite happy that the mobile connection I receive is stable.