As a competitor to iOS-controlled video cameras we've seen from Avaak and Withings, Stem Innovation's new iZon ($130) is a white tube with a video camera, microphone, and 802.11b/g/n wireless capabilities built in, using a detachable magnetic half-globe and included wall-tapping screws for mounting and angle adjustment. Bundled with a wall power adapter and very Apple-like USB cables, iZon relies upon a free downloadable Stem:Connect application…