Depending on personal preference, it is either an expression of joy, happiness or delight or an expression of sarcasm in response to a small gain/reward etc.
Joy.
"You got an A+ on your mathstest!"
"Goody gumdrops!"
Sarcasm.
"For finding the cure for cancer, we give you this small keychain."
"Oh, Goody gumdrops"
n. software that is no longer sold or supported by the original publisher / developer, often found as free downloads on the internet because it cannot be obtained elsewhere. Not legal, but often seen as morally acceptable because the company that made it is no longer selling the title, nor releasing it as freeware, therefore abandonware is "keeping the gamealive", so to speak.
Doom II is not abandonware because idstill sells it, while The Incredible Machine is not sold, therefore is abandonware.