Battery Percentage
I've found two ways to get a semi accurate batter percentage on my IPT 4G. One is jailbroken, the other is not.
1st one (jailbroken):
go into cydia and install a package called "battery percentage without 3GS". This works on IPT 4g and it is under the Pwncenter repo. When you install and respring, you should have an option in general settings that lets you enable a batter percantage that is some what accurate... give or take about 5%.
The next one (no jailbroken) doesn't really give you an actual percentage, but its pretty cool, it TELLS you the percentage.
Go into general settings>accessibility>voice over and turn it on. then, go back to accessibility and go down to where it says "triple click home" this option configures how the home button behaves when you triple click it. Check the option that says "toggle voice over". Now exit settings and triple click the home button to activate voice over and hit the battery icon at the top right. The weird female robot voice should read you the actual percentage of your battery.
I think both of these options are a good alternative to SBsettings which, to me, is a battery hog.