There is a brand new version of Noteshelf with support for the creative stylus! Usually I wait a few days before downloading updates, but this time I couldn't wait, especially as the app has been a bit buggy since iOS7.
Palm recognition WORKS!!! I'm impressed.
Pressure sensitivity is OK, the line width variations are more subtle than in the Wacom app, but they are still too marked to look natural. Not sure I will keep this on. In the settings you can choose to activate pressure sensitivity and/or palm recognition. You can also customize what the buttons do. Default value is nothing, which suits me fine