PeekTab is totally different than parental control browser. Peektab gives you live screenshots of your device and locates it for you at any given time. You get logs about how your ipad is used when you're not around it. Jailbreaking is free, harmless, and reversible, and it's the only way to get powerful programs on an iphone or ipad to do what you want it to do.
Unfrotunately, Peektab doesn't work on iPad unless you jailbreak it. If you need a parental control for the iPhone/iPad, McGruff SafeGuard (they have a Windows Parental Control system) released a Child Safe Browser app that is a look-alike for Safari, but provides a parent with full control of the categories of websites that can be visited. You may remember McGruff “The Crime Dog” - Take A Bite Out of Crime - from your own childhood. It also provides a summary of activity to the parent via email.