I'm announcing the unveiling of a new mobile skin. It's a lot more modern and matches the style to our desktop version. Check it out by visit PF on your mobile browser of choice via your phone. Most tablets will use the desktop skin. MathJax works this too if you are frustrated with the app. I'll be tweaking it a bit for a few days but it's pretty well set. Let me know if you have any suggestions or problems. Enjoy!