I would like to read the answers to the Android - Stack Exchange site while on the read (in a bus or something).
Is there, or will there be, a mobile version of this site ? One which makes it easier to read on a smaller screen ?
Since circa 2011 all of the Stack Exchange sites have mobile-optimized versions.
If you're stuck in the desktop version you can force yourself into the mobile version by clicking the "mobile" link at the bottom of the page.
Conversely, if you find yourself in the mobile version and want to force your browser back to the desktop version, click the "full site" link at the bottom of the page.
The site should be able to work it out from your user-agent, though.