Amazon Appstore - The Amazon Appstore is a place to purchase and download apps for your Android device.

PingInfoView - PingInfoView is a small utility that allows you to easily ping multiple host names and IP addresses, and watch the result in one table.

GetJar - Discover and play paid apps and games for free.

SmokePing - Smokeping is a tool for measuring latency.

F-Droid - F-Droid is an interesting alternative for Android users who want to try something different and not have to use the Goole Play store all the time.

PingPlotter - PingPlotter is a troubleshooting tool that helps IT professionals and neophytes identify, diagnose, and resolve network issues.