I have this issue as well, I was also wondering how are people setting up your iphone app for the rpi and minepeon??
If you are seeing this error, please download the
Debug build from the releases page and then paste the error message you are receiving.
Regarding using MobileMiner with the Raspberry Pi, try contacting tk1337 to get an update on where that stands. There's some info on it here:
https://bitcointalk.org/index.php?topic=137934.msg3105535#msg3105535