I must admit a marked lack of enthusiasm for projects like this. You already have a number of vim "clones" developed with various technologies (ysis in qt4 - dead, yi in haskell - though it has also an emacs mode, still actively developed, probably others I don't know about). They haven't managed to take off in a significant way, what is this one bringing to the table? The idea of taking on an editor with about 20 years of development behind it, even with the editor core already written, in a couple of months, is ludicrous.
And to top it all, it doesn't even work in a terminal.
The problem is attracting a large enough group of users and contributors. If you have only a handful people working on it then it will quickly fade away. I've seen this with several open source projects. One maintainer finishes college, the other changes jobs, the one guy who thought he could make a living out of it realises he's broke, the biggest contributor becomes father and all of the sudden there are too few people left. And although everybody loves the new ideas behind the project it quickly turns into an unmaintained mess and because there are so many alternatives available they'll eventually move on.
Let's face it the editor market is really really crowded. And there are tons of great editors out there. You really have to be innovative to get a foothold there. And can HappyEdit really provide that by simply being a vim-like in-browser editor with some sublime features? It is incompatible to all the existing vim plugins and has to reimplement everything vim does. The majority of vim users are probably not interested in fancy guis or even leaving the terminal ("it's not the UNIX way"(tm)). And the $10,000 he asks for will only get him 1-2 month of development. Oh and the indiegogo campaign has less than 3days left and currently only a bit more than $1,000 of the $10,000 he asks for.
Precisely. If you want to challenge a product with massive mindshare [1], then you need new, very compelling features, and preferably be compatible with the existing ecosystem.
And to top it all, it doesn't even work in a terminal.