The problem I have with the ending...
So the basic plot of this movie is how this rag-tag bunch of social rejects came together and created a very inexpensive PC. They all did their own little part to make it a very unique piece of equipment; the girl designed the body, the crazy guy came up with the glove idea, the fat guy wrote the code, etc...
However, near the very end, the main guy has this revelation that the whole thing is wrong and the thing they spent the whole movie building needs to be completely redone. Then, in the very next scene he has created this totally different little computer that kind of looks like the handle of a lightsaber.
When he scraped all the parts the other guys did, except for the fat guy's code (I guess), it really made the entire first 90% of the movie pointless and everything the other characters did redundant.