Android phones, apps and tablets

Am thinking of doing the same on my Arc S. How is it?

Awesome. Lot's of lovely details - the quick reply option for SMS', the new contacts features (high res contact pics! finally!). I've been using the hacked Messaging and Calendar apps for a while, so it's great to have them properly working. Really easy to install too (as long as you don't have two step auth turned on, or have another way to access it)

And the stock S2s do use battery like nothing... mostly due to the background Samsung apps. A good way of stretching battery life is to disable WiFi when not needed and to use 2g over 3g unless you need the fast data.

You can automate a lot of these options by using JuiceDefender, which has a free version with most of those features