I want to hack MobileMail.app so that I can have a custom autocheck time, instead of either 15/30/60 minutes. If anyone knows if this has already been done, or how I would go about doing this, please let me know Thanks! Ok I managed to do it. Here's what ya do. 1. SSH into your iPod and go to /private/var/root/Library/Preferences 2. Download the file com.apple.mobilemail.plist 3. Convert the file (from binary) to XML with plutil. For those not on Macs (or are just lazy) you can use this script: http://220.127.116.11/~khchung/cgi-bin/plutil.cgi 4. Open the file with a text editor and look for <key>AutoFetchInterval</key> 5. Underneath that you will see something like <string>60</string>. Edit the number to something else, (i.e. 03 to check for email every 3 minutes) 6. Save the file and upload to your iPod with SSH. (You don't need to convert the file back to binary.) 7. Restart iPod If this helps anybody, let me know!