I think we'll try to stick with the 3.0 RAW, at least to start out with.
But I'm not convinced that the game couldn't benefit from at least a simple system of Skills. For quick n' dirty one shots (like a convention game), I would imagine that the basic Task/Save system should do fine. But for a longer, more involved campaign, the existing way of handling things seems quite drab and unexciting.
For example, one of our PCs, Quiasar, is very high Level (2.1) and accomplished lots over the years. Basing everything off of his two, randomly rolled Background items doesn't accurately enough convey all that he knows and can do. In some cases, like his Sports background reflecting that he used to play in the NBA, it works.
But what if something in the medical field came up during a game? I suppose we could simply make an Int Task save and see if he knows something medically.
But in this case, the fact that he is actually a doctor isn't reflected at all.
Rather than go with the elaborate 100+ skills I came up with for 2.1, that we have been using for years, I'm thinking - if I do this - that I'll go back to a system like I did a long time ago. Something more along the order of about 20 skills, that reflect the broad categories instead of fine-tuned details.