Screen mirroring on Android is still a bit of a hit-and-miss prospect. Plenty of issues can arise from environmental factors like network congestion, to the type of device being used (*ahem*, Tegra). A few months ago, we covered a recent entrant in this market, BBQScreen by XpLodWilD and nebkat. The app was able to deliver a pretty consistent 25 fps from several types of devices over WiFi, Bluetooth, or USB. Unfortunately, several bugs and incompatibilities plagued some users, but the developers have been working hard to remedy many of those issues.
Getting your Android display output shared to a larger screen is usually a pain in the butt. You can fiddle with HDMI cables on some devices, rely on sluggish apps, or just wash your hands of the whole thing. But wait, recognized XDA developer and CyanogenMod associate XpLoDWilD and recognized XDA developer nebkat have released BBQScreen. This is a root app that blasts your live Android interface up to a computer over WiFi, Bluetooth, or USB.