I haven't seen any updates on this subject since the middle of 2011. Has anything changed that allows you to increase the char size for TXT msgs?
The phone provides that option for mail but I don't see any way to do it for txting.
Ann154 is right. You can't change just the messaging font. The only way to change the messaging font is to change the font for all the phone's functions and screens.
None that I know of for the stock text message application. You can try a third party text message application from the Android Market.
