GIMP should have been the obvious choice. Since Digit "encourages" using legitimate software, can someone tell me how do they expect people to buy Photoshop, which is like 40000 Rupees for a single license (correct me if I am wrong). A webinar on how to use GIMP for what we do in Photoshop would have been really innovative.
For noobs who want the PC tuneup webinar, just download CCleaner, Revo Uninstaller or copy it from the Digit DVD. Run these to tune up your PC. DONE! You may also install IOBit Advanced System Care Free from the Digit DVD.