moBlog is a free mobile blogging client for Windows Mobile 2003, 5.0 and 6 that allows you to create and publish blog posts directly from your mobile device even while offline. moBlog currently supports Blogger, Wordpress.com and Live Spaces. Support for LiveJournal and MovableType/TypePad is also on the cards.

Here are the main features of this mobile blogging client [via MSMobiles]:

+ Supports creating multiple profiles (for your different blogging accounts) and multiple blogs within a single account (such as for Blogger.com).
+ For Blogger.com blogs, moBlogger supports setting Labels (Tags). For Wordpress and Live Spaces blogs, post categories are supported.
+ The offline mode allows you to write and edit blog posts even while you are not connected to the internet on the device. A connection is only required when you initially setup your blogging accounts and when you want to update your blog with the new content.
+ moBlog allows you to save the blog posts locally while they are still being written and edited. Once it is published, the local copy is automatically deleted from the phone in order to free up the storage space.

This application requires Microsoft .NET Compact Framework to be installed. Download the latest version of moBlog from here.