Wifi Analyzer is a great app to have.
Pulse is pretty good for putting feeds together and letting you read the article in app.
+1 for the kindle app, I wouldn't reccomend trying to read whole books on it but its great for reading when your kindle or tablet are not with you.
I use evernote on my tablet for note taking etc... not really tried it on my phone.
Power Control Plus lets you add custom button bars to your home screen, I have one bar for connectivity which has: Wifi On/Off, Bluetooth On/Off, BT Discoverable, GPS ON/Off, Sync On/Off

