This looks like a really neat project that could really benefit me (Skype is a buggy piece of garbage but it's the place where 90% of my online friends congregate).
However, one big issue I forsee is issues with Skype changing their API/protocol and completely breaking the open source alternative. Updating would require a constant stream of development work which, if past projects of this type are anything to judge by, may be difficult or impossible to supply.