I lost about 20 lbs in the beginning (11 mo's ago) have my blood sugars in fairly good control (usually 118 to 130 2 hrs after meal and 126 fasting) and have not lost a lb since. I've tried working out, walking, bike riding and doesn't seem to make a difference. I keep hearing how Met is supposed to help you lose tons of weight so I still have hope maybe it'll kick in one day.
congratulations! It's amazing how much weight loss can do to control blood sugar. However, I don't mean to rain on your parade, but in addition to maintaining your weight loss you should continue to have your A1C checked periodically as diabetes has a habit of progressing.