Hello M Kumar,
1. Mobile applications are usually deployed via Apple App Store for iOS or Google Play and some other stores for Android.
Icenium can greatly help by signing the final packages and even upload the application to iTunes Connect without a Mac (in upcoming release).
2. Icenium is NOT a Beta since official release (22 October 2012) and soon we are going to release v.1.2. We determent to release new features and improvements each 2-3 mounts.
3. The common approach in HTML application for work with remote data on a server is using Ajax and JSON to consume a web service.
It depends what technology is used at web server for example is it return XML or JSON, is it PHP or ASP.NET, etc.
You can find many tutorials on the web how to do that for your specific case.
Note: That it is good to implement some sort of offline buffer/cache data layer as connection may drop.
All the best,
the Telerik team
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