The modified Email.apk for ese81 (I believe) was awesome....HTML viewing plus signature ability on all your email replies and forwards. Since moving to 2.2 FROYO this no longer works. I definitely needed HTML for work. I tried installing the Email.apk into FROYO roms and it just force closes like crazy.
I still have this Email.apk saved on an old Bugless Beast V1.1 backup if anyone knows where to start....I sure dont.