It depends.
It depends on what you mean. The Apps that you create with Andromo are fully compatible with the vast majority of Android devices and can and have been uploaded to the Android Market. Android is an open platform and making use of it in the way that Andromo is doing, is championed and often celebrated.
There are a number of options for one to find cool apps for android devices. The best option with the widest selection of apps is the Google Play website. Apps for android devices can also be found on the 'Android' site.
Android market place (market.android.com)
You can download them on getandroidstuff.com
Most of the applications usually have a website. You can easily get the Android apps at the Play Store.
I don't know about a website but there are definitely apps for doing so
Try www.appxg.com Or android.brothersoft.com/
sdk is the Software Developers Kit it is a bunch of software that allows you to write/create your own android apps
There are both free and paid apps available for android phones.
No, Android Market apps are only for Android phones. For an iPod Touch, you would have to use apps from the iTunes Store.
You can find them on the android market under the free section. This will allow you to find the top free apps for your latest android phone. This is how I find the best android apps.
One can find the call barring apps for Android devices on the GudTricks website. Some of the Call blocking Apps for Android as the following; Mr. number, Call blocker, Call-Control-Call blocker, Call and message blocker, and Blacklist Pro.