Thanks. I picked up a SkyFi as it was on sale. Here is what I have learned:
The SkyFi supports an adhoc network so go into your Win7 or iPad or whatever and select the 'SkyFi' network (you may also rename this network if you like). This IMHO is much easier than having to deal with an existing WiFi and password and all that and is simpler than the BlueTooth solutions as BlueTooth has the dreaded pairing proceedure which can be frustrating.
SkyFi also 'should' work on a WiFi of your own if you authenticate it and so on but that is not a typical field usage case but might be nice to control a scope in your home network like out in back. Have not tried that mode yet.
What I have tried and found to work on specific mounts/controllers:
SkySafari 4 Pro on an iPad Air connects fine to the adhoc network presented by the SkyFi.
SkySafari 4 Pro has catalogs rivaling or better then the best of them (I include my fav MegaStar)
The above setup worked like a champ in the field last Monday on my Ap900 and was easy to use.
MegaStar or other PC usage over a Comm port requires that you also get a virtual comm port installed and I set mine up as Comm 8 then this setup worked with megastar to my Atlas-EQ6 because MegaStar supports the older Atlas-EQ6.
SkySafari 4 did NOT work with my Atlas-EQ6 and I think that is because it assumes all the SynSync controllers are the same BUT there is a 'silver' and a 'gold' labeled one and there was a quantum jump between their software so SkySafari folks don't know that OR choose to not support the older Atlas-EQ6
I will be trying this out on my SkyCommander for my main 18" goto DOB at some point for kicks and I also may try it on my pushto 12" dob as a last priority. Maybe even a friend's Argo Navis.
Thanks for the reply and I should have done the wrap-up on what I found earlier. Hope this helps somebody else too.