I have two iPod Touches that I use with a Virgin Mobile MiFi 2200 and I love that it lets me know when theyre both connected. It alerted me to an issue with my MiFi unit itself!
I wish that I could change the colors(I like warm tones), but this is the best app! Theres so few that do this. Kudos!
KShanti about MyMiFi - monitor your MiFi signal and battery