Hi Steve,
I had to do the same decision some monthes ago. Servinfo gave up the work on both VATSIM and IVAO, next to it, EuroHarmony seems to show bigger sympathy to IVAO, and I heard that IVAO network became more popular. All these lead me to switch network.
And yes, many things has changed. Do not be afraid if your Servinfo does not work, IVAO has a new program, made by our President Gergely, and is called "IVAe - The eye of IVAO" It is very very similar to Servinfo but has a much nicer graphical window. Also you need to download the pilot client: IVAp, and the Traffic Libraries (mainly AI-Aardwark aircraft models), so your colleagues would show up in the multiplayer session.
Good luck for the change
