Hi, In a previous post I told about the more than 1800 error messages when compiling HaskelDraw and asked if someone knows how to compile it properly. Actually it is easy to do. Just remove the C-sources tag and corresponding files from the cabal file. After that it runs in the simulator. After that you have to do the `Haskell binary and library stuff' from the install description in GHC-iPhone.pdf to make it possible to build for the device. Only use $CONFIGURATION_BUILD_DIR/dist/build/HaskellDraw in stead of $BUILD_PRODUCTS_DIR/... That one didn't work for me. You can (at least I can) now build for the device. For running it you have to become an official developer (for $99) or use a jailbroken device and some adjustments to xcode. To be complete: I use xcode 3.2.5, osx 10.6.8 on an iPhone 3GS with ios 5.0.1 having a tethered jailbreak. greetings, Ton