I saw your post, and thought "maybe I could inject Straight Talk's APN info in, and get MMS working too!" ... I can't even compile the APK through APKTool. I keep getting errors about no resource with given name... Decompile worked, but compilation didn't. Did you use anything special to recompile the APK once you edited /res/xml/apns.xml?
Any fool can use a computer. Many do. Thank you to all the fools out there: you're my job security! (^.^)
"Android is like MacGyver: a little rough around the edges, but given the right tools, it can do anything!"
Samsung Galaxy S4 SGH-i337 running SHOStock-i
Asus Transformer TF700T running CROMBI-KK
Amazon Fire TV: rooted, with FiredTV launcher and XBMC.