- Under some circumstances while moving the pointer it might lag to catch up (i.e. keep doing circles at medium speed). Do sequential (not constant) moves and it won't bother you, will try to fix this soon. BTW, if you're in a heavy WiFi zone (lots of APs, or whatever that uses 2.4 GHz, microwave oven, cordless phones), this behavior might be related to interference as I have noticed.
- The cursor isn't visible while over the browser area (I guess their large, ugly cursor takes precedence?), still shows in address bar and the top bar.