Below are the answers to your questions:
Q: 1) Since we don't want to use back end services, how do we connect to the existing web service at, for example, https://www.domain.com/Service.svc
A: You can easily access your existing services using jQuery ajax
Q: 2) What cryptography classes/code are available for generation of the MD5 hash?
Q: And in a related question, one of my co-workers had been trying out the web based IDE but had issues with crashes and performance. Are these widespread? Being resolved constantly?
A: We are on a short release cycles - 6-8 weeks and with every release we are trying to deliver as many new features as possible as well as improved performance and bug fixes. So any feedback of your experience is much appreciated. Can you be more specific what issues did you have with our web client so we can reproduce and fix them.
Q: Last, if we attempt to develop via Visual Studio extension can we develop a hybrid app which will work with IOS using that method or would we be limited to using the web IDE for IOS/Android/Windows concurrent development?
Basically, you can achieve the same things with AppBuilder Visual Studio Extension, AppBuilder in-browser client and AppBuilder Windows client. It is a matter of personal favor which one you will work with. You can use any of them to develop for all the major platforms - iOS, Android, Windows Phone 8.
Q: Actually, this will be the last one. How about source control integration with our current source control solution if we use the web IDE?
Currently AppBuilder integrates with git. You can read more about how to link your AppBuilder project with your git repository here
. What source control system do you use?
If you have any further questions please don't hesitate to contact us.