THis feature should be easy to make.. Go here: http://isopaphaggot.com/ Enter the info and see what happens.. You will see an option for: Click here to screenshot & share! I would like that feature to work. It should take a screenshot and give a link to share.. Only need the blue box screenshoted.. Let me know
I can do this. However, like mentioned above, you might want some good hosting, cause it will do some damage on your memory space.
No, it's just not a matter of memory, it's a matter of reliability and missing modules that it may be impossible to install! For this kind of projects the best thing is a VPS and nightly backups.
This will eat your bandwidth up. The easiest way to go about this would be a dynamic PHP image. Which like I said, will take up a good amount of memory.