Galaxy S2 here as well. - Opera Mobile I can't stand the stock browser, especially the tab switcher. I probably spend 90% of my phone time in the browser. I al

Galaxy S2 here as well. - Opera Mobile I can't stand the stock browser, especially the tab switcher. I probably spend 90% of my phone time in the browser. I also work for Opera :) - Swype Once you get a hang of it, typing is incredibly fast. - WhatsApp Instead of SMS. - ConnectBot For ssh, including irssi (there's a special mode with irssi shortcuts). - AudioBook player Very straight forward. - ezPDF Can wrap your pdf's, change background colour, read them out loud... - Color Flashlight The only one I could find that would use the S2's camera flash. - Toddler Lock For when the kid wants to play with my phone. Disables all buttons, enters airplane mode and lets you draw on the screen with a bunch of sound effects. - KeePassDroid I save most password in the browser, but keep them here and occasionally sync them with my desktop computer via sftp. - AndFTP Ftp, scp, sftp, etc. - SwitchPro Widgets And stock apps for camera, music, etc.