It would be better to just wait until the Open2X firmware is out. I believe firmware 4.1.1 fixes some things like the excessive volume, but in turn breaks the touchscreen requiring you to patch it with ED's version of notaz's utility.
Pros:
- Improved built-in apps (new features & fixes)
- Lower volume (for apps with ear-deafening volume)
- No more sound frequency issues (Allegro games, Java games...)
Cons:
- Broken touchscreen (for homebrew only; notaz has a fix for this)
- Volume too low (for apps that auto-detect F-200s & then lower the volume)
- Broken autorun function (using GMenu2X is a pain)
IMO, it is better to stick with FW 4.0.0 (or wait for Open2X). The broken autorun function is too much of a loss; GMenu2X is very hard to use, as it needs to be relaunched manually each time after exiting apps that exit back to the gp2xmenu.