Really cool program if you have some sort of ISP. reads writes fuses, flash, EEPROM.
Nice interface for either pick-box or hex entry for fuses. Lets you save off the hex files...
Has the 328P as well as the 2560.
Basically a GUI front end for avrdude. Note that you have to set it up for your path to Arduino's avrdude exe and conf file. Also has a nice list of ISP's/JTAGs for use with Atmels.http://avr8-burn-o-mat.aaabbb.de/avr8_burn_o_mat_avrdude_gui_en.html