Hi, I am just using pubcoder to convert my epub document produced in InDesign for the ipad (1024x768pixels) into a version I can sell on Android devices.

As there are many different sizes and different resolution devices I just want to make a "one size fits all" layout. I am quite happy for there to be black bars down the sides when the screen ratio is different as this works with my layout fine.

What size would you recommend? Also what resolution would you save background images in and is jpg or png better if I don't need transparency on them, I just need it to load fast?
Many thanks
Cheers
Gia