College Cofounder of Min.us featured on Inc
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I guess min.us has built out their feature set a little more, and DropMocks was just a side project of Glen Murphey's (open source! https://github.com/glenmurphy/dropmocks ), but all the same it'd be more heartening for original ideas if it was DropMocks that was getting this press.
[edit: In fact min.us is built on DropMock's source, in accordance with its very permissive license but without acknowledgement and a little tactlessly in my opinion. http://www.reddit.com/r/reddit.com/comments/eailg/minus_code... ]
IMHO, leaning on someone else's UI is fine... taking someone's backend (the harder part) is robbery.
Anyways, Dropmock's server-side code is ~500 lines of Python, the bulk of app code is in JavaScript and comparing files like https://github.com/glenmurphy/dropmocks/raw/master/files/moc... and http://min.us/smedia/minus/scripts/mock.js suggests that the heart of the "harder part" is still Dropmocks.