Connecting iphone with google appengine - objective-c

I am trying build a database on google appengine and connect it to my IOS program. I am new in server side programming. I have done the tutorial about google appengine with java and eclipse since i know java and have no idea about Python. Can anyone direct me to a tutorial about this? All I found on the Internet is talking about Python and couldn't find anything about this topic with java and ObjectiveX.
Thanks all for your help

To begin with you will have to complete the Getting Started: Java tutorial that is written by Google App Engine team, to understand the basic concepts of working with such environment.
For your client side it doesn't really matter what you are using, it can be ObjectiveX or C# or SubjectiveY, as long as you can connect using whatever you built on the server side.

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Is it possible to develop google glass apps using objective c?

I have gone through a deep research on developing google glass apps using objective c ,but I have found that we should only use Java/Python/PHP to develop google glass apps. Since I am an objective c developer I am looking for some static library or framework for xcode, which is built to develop apps for google glass. Please give me any idea, is there any such frameworks/Library? Any of your suggestions would be much appreciated.
Yes, Google provides an Objective C API library at https://code.google.com/p/google-api-objectivec-client/ that includes generated routines for the Mirror API. You should probably also consult the documentation at https://developers.google.com/glass/develop/mirror/index for a broad understanding of how the Mirror API works.
Note that this will allow you to develop web services that work with Glass. It will not allow you to develop applications that run on Glass itself. It also will not allow you to write iOS applications that communicate directly with Glass - it will need a network connection to the Mirror server at Google and there may be some restrictions about how a callback will work.
Android SDK is what you use to create .APK files to run on an android or google glass device. It is based on the java platform.
Just like Prisoner says you can mess with the mirror API by sending cards to your device in almost any language via those starter kits.
If you are actually trying to make glassware you will need the Android SDK. Unless you are a very experienced programmer I wouldn't try to program in C to create apps going on glass.
On a side note: if you are a new programmer and are only experienced in C, try to learn python. Python is great for programming in C with a variation called CPython.

XSockets on Linux for WebRTC Voice Conferencing Setup?

I am very new to WebRTC and XSockets.
I have been struggling to work out how to start coding a WebRTC app running through XSockets. Ideally my production server would be running Ubuntu or similar but all I see is talk about Visual Studio, MVC etc. But I have also read it works perfectly with Mono on any platform.
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I highly recommend running a mongodb (easly scalable from a dev boxes to hundreds of servers) and using the library https://github.com/dominionenterprises/mongo-queue-csharp on top of it for the messaging. It has the ability to query for messages which enables some really nice patterns. Also its compatible with mono ! Also has some other languages if needed down the road.

VB .net server and client

I'm using vb.net server and client application. I'm using system.net.sockets.
Can I use java, c++ or php in server side? If so, please, tell me how. If not please guide me on how to speed up my application.
Here is Java Tutorial info about sockets:
http://download.oracle.com/javase/tutorial/networking/sockets/index.html
Other networking stuff on Java is nearby. Java can run on Apache Tomcat server as well as several others.
Hard to recommend ways to speed up your setup without more details.
In my experience, there's often more to be gained from "doing it right" (if there are inefficiencies in a setup) than there are from switching systems.