Well, i finally got Sprinter into his new home, a Dymax IQ3 and he is HAPPY!! The way he swims around the tank and then right in front looking at me for a couple of seconds to go swim around again, he did that about 5 or 6 times. I am glad to see that he is so happy.
When i got him a month a go, i had no idea what name to give him, it took me about a week, since he is blue i thought of the the typical ones, cobalt, skyline, azure and some others.. but didn't like them.. until one day that he was swimming fast and darting in and out of his plant my eyes saw one of my Lego Racer cars, and i saw the decal that says "Sprinter" and wham!, my betta had a name, Sprinter.
So, don't worry if you can't find a name for your betta(s) right away, watch them for awhile, see their behavior and a name will come to mind eventually that will suit them just fine.
So, here's a couple of photos (not very good ones as i took them with my PSP :P )