AndChat is a free multiserver IRC application for the Android mobile platform.

Taggers is a location-based micro-blogging (Graffiti), reminders (My Notes), and private messaging service.

Phonalyzr takes your phone call log and displays a number of different graphs which can give you an interesting look into your calling habits.

Developer: Martin Drashkov

Swift is a twitter client application for android devices from Sebastian Delmont.

With MySpace Mobile 1.7.5 for Android-powered devices you can use many of existing functions of your MySpace account.

SatTracx mobile locator application helps to know your location or the whereabouts of your family, friends or your assets at anytime.

Palringo is an universal messenger for various IM services allowing you to chat, send picture messages, share your location, see location of friends.

Meebo for Android is a multi-protocol instant messenger client. It supports AIM, Yahoo!, MSN, Google Talk, ICQ and Jabber IM networks.

Developer: Meebo

SMS Replier is an Android application that allows you to respond to the text messages and calls responsibly.

AutoRecall FREE 0.91b is app that gives automatic ReDial and ReCall feature to your phone. Repeat calls automatically on busy or other call failures.

With picplz app for Android one can tell the friends something with a photo.

chompSMS designed for people who often write sms. It adds a lot of extra features like chat-style bubbles, quick reply, contact pictures, signatures.

textPlus an application developed for Android phone that allows to write test messages to other people who have such app installed.

IM+ Lite is an all-in-one mobile instant messenger client application for Android devices.