Ok I just downloaded stanza to my iPad I had it on my iPhone and loved it!
I'm not yet as happy with any of the reading apps as I was with stanza! But stanza on iPad ain't good it's small or big and blurry via the 2x.
So I used spirit to jailbreak downloaded full force and set it to force stanza to open full screen... And it is PERFECT everything works and it is THE best solution for reading on iPad for me!
Couple of highlights - tiny margins!!! Yay choose from loads of fonts!! YAY connect and get content straight from Calibre YAY!!!!
1. Download spirit jailbreak software for Mac or PC
2. Connect and backup iPad with iTunes
3. Ensure in iTunes that 'auto open iTunes when iPad is connected' box is NOT ticked
4. Close iTunes
5. Open spirit program and press go
6. Disconnect iPad and open cydia app
7. Search in cydia for 'fullforce' click on it and it will auto install
8 go to settings and go into full force option click stanza to on
9. Open stanza!
I'm gonna post a pic in a second of how it looks.
Obviously more detailed instructions are available on net or ask in here.