While I have not used fibon gem in awhile I am going to start working on it on free time. The general idea of the gem was to allow the user to pull out and test Fibonacci numbers. While not complex I was happy about the size compared to other gems that did similar feats.
At the time of the writing I had over two thousand downloads of the gem and over five hundred with this current version. The lack of updates were due to the change in directions with projects I had at the time but at this point I think it would be a shame to not update it.