Using CyanogenMod7 build and running low internal storage space? S2E (simple2ext) is here to rescue you (I mean your phone internal storage). Basically, S2E is app2sd for CyanogenMod7. There are 4 parts that you can move to SD card ~ applications, private apps, Dalvik cache and download cache. Select anyone of them that you want to move to sd-ext partition at SD card. I tested it on TyphooN CyanogenMod 7 NAND Android RAM Zip ROM for HTC HD2. And turned out successfully.