Using iOS4.1, but missing your battery percentage meter? It's a lot better than having nothing more than that little battery icon in the top corner. It feels much more accurate.
Because it's taken out be default with iOS4.1, some users may not know where to go to get it back. No worries, it's quite easy.
1) Go to Settings
2) Now go to General
3) After that, you will see the toggle for the battery percentage indicator.
Know that if you have an iPhone 3G, that toggle won't show up. Unfortunately, it's not available without a jailbreak.
Note: iPhone 3G users may want to check out Battery Time. It's not going to give you the percentage reading on the top, but it's free right now, and will give you all the important readings:
Battery Time: Link