Someone asked about Windows support. I have checked the Epson.com website and found the support details for the free software from Epson in terms of Windows 7 and Vista:

This scanner is supported by Epson in Windows 7 and Vista in 32-bit AND 64-bit mode. So you can use the Epson software with that scanner regardless of whether you have a 32-bit or 64 bit install.

And it is fully supported by Mac OS X up to and including Mountain Lion.