I never did get the point of jailbreaking your iOS device to then go and download a paid tweak from Cydia, but this next addition that you can download really makes the difference. Something that I've really been wanting for iOS is an easy way to reply to text messages without quitting my current open process; an annoying task to exit your applications every time you decide to simultaneously get social. Messages+ for jailbroken fixes that issue, which really makes me want to jailbreak my 4S. Unfortunately, I can't do so with an untethered jailbreak, quite yet.
Don't you just hate trying to manage cell phone minutes? Sure, you can call in or check your usage online, but what if you need a quick reminder of your remaining minutes? Thankfully, Apple has graciously provided a really easy way to do this right from the Settings app. From the Home Screen, tap Settings>Phone>"AT&T Services" and "View My Minutes". In a moment, you'll get a free text message telling you about your remaining minutes.