iPhone Tweak to disable landscape orientation on a per app basis?

[TitsLegendary]

I like landscape mode in certain apps but absolutely hate it in other apps. Are there any tweaks out there that allow you to disable landscape mode on a per app basis?

 

[HankHowdy]

Activator can do this.

 

[TitsLegendary]

As a follow up, there is a new tweak called Portrait Lock that allows you to do exactly what I'm wanting. You can set it so that each app will automatically go to a particular orientation. You just have to kill the app and respring after setting them. Bingo!

 

[fisherking]

Portrait Lock is great, works perfectly here...