Glad to hear you are enjoying the iHub app. It is a very cool new interface for the iHub site isn't it?
I believe we currently have around 500 users on the apple app. Most of the feedback has been quite good. One thing I keep hearing is that our app can show the last 100 trades. Apparently this feature is missing from a large number of other stock apps.
Android app is available in the android marketplace this week. It is a beta version though which means it is still in testing phase and not quite ready yet for a full launch with great fanfare and a big parade to celebrate.