Recently went Android … Most important app: SuperSU — all good apps follow from it 🙂
What else? K-9 Mail vs the stock mail applet. PA Tone to test audio/speaker systems. Flashlight. Link2SD. GV Phone, so I can use Google Voice from an account that’s not linked to the OS. Let’s Print Droid — allows printing to non-kloudkrap PCL5 and Postscript printers. WiFi Tracker. JoeVLC. uTorrent. JuiceSSH.