Is it possible to leave some apps in the internal memory while using S2E? Well, is it possible? I have a Galaxy Ace with the official CyanogenMod ROM. I only have a class 4 micro SD card and is using the SD Speed Increase app.

I was wondering if I could leave some apps (like handcent sms, go launcher ex, etc) in the internal memory while retaining other apps in the sd-ext partition. Thanks.
S2E moves the whole applicator folder to your ext partition. If you want to move specific applications you need to use something else. 

Something else in this case can be Link2sd. You can pick apps and even data to move.