I have developed an R package for a general class of regression models with applications in survival analysis. I have prepared a paper describing the package and the methods, and the applications. One possible outlet for this publication is JSS. However, it is well known that their reviewing process is very slow, taking even years to publish something there, which is rather bad for a computational contribution as things move faster than in theoretical statistics.
What alternative journals are there?
Edit: I just came across the R Journal, and I am currently having a look at it. It looks like a good alternative choice.