I can't obviously recommend jail breaking because that would be bad, but in my experience of jailbreaking with several phones and several versions of IOS now, it's pretty difficult to "brick" the phone, worst case for me has been having to plug into iTunes and restore, and that was more my fault than the jailbreak. Pm me if you want to chat on that!
My changes are very hackish! Looking back, I replaced a default font with a 32 pt/pix/em (units?) font and bold as well, I've mostly been interested in just seeing if this is worth doing, my main aim is to be able to login and execute a few daily scripts if I can't get to a computer. Since requests don't load images, styles or js, it should even work relatively well on 3G and GSM!
Once I know this works I will
Probably start putting some
Patches together to fix headless mode properly as you said, based on km receiving the --CLI parameter I think, or maybe another parameter for really headless
If you don't want to jailbreak, I'm happy to do the testing! Will be next week before I do any more, but for reference im using JamVM and you need to use java -X to allocate more memory, otherwise you get a memory fail
Loading modifiers.txt I went with 200m and that works fine for me for now. Also OpenSSH is awesome, and you'll need mobile terminal, and sbssettings is a must for any jailbreak!