Billy Wilcosky

Narwhal Microblog adds a minimal front-end posting form on any page with the shortcode, [narwhal]. It’s meant for short updates or microblogging.
The form submits without refreshing the page and then redirects to the post that was created. If you don’t quite like this behavior, check out the FAQs.
Unlike other front-end forms that have you type out the title, post content, and tags separately, this plugin takes an original approach by using a special format. Think of it like using markdown in a way (if you’re familiar with that). Once you commit the format to memory it makes posting updates even faster.
What you type into the textarea is:
(Title in parentheses) 
Content on a new line with any word #hashtagged.
Example:
(This is an amazing title) 
But, the #content is even better!
The above would create a post titled, “This is an amazing title,” with “content” as a tag.

Narwhal Microblog

Narwhal Microblog adds a minimal front-end posting form on any page with the [narwhal] shortcode.

Vitaliy Panchenko

Microblogger allows you to easily create a microblog sidebar with quick updates of your thoughts and actions, but it also comes with a useful blog activity tracker so your readers can keep up to date with the rest of your community! The plugin is highly customisable, allowing you to have complete control over the way your bloggings are shown to your audience.
The plugin is also accompanied by a mobile UI that will allow you to write microblogs and see recent activity on any wap/GPRS/3G mobile phone – for the cost of around 3KBs data transfer (1 or 2 pence UK depending on your network provider)!
Also, the modular design of the plugin opens the door for third party additions to the plugin.
Development is still very much on going, so frequent updates are to be expected!
Your feedback would be greatly appreciated! So please drop me a line on the comments area of the microblog page on my blog, or at samuel.ecwilliams@googlemail.com
Key features:
<ul>
<li>
The first wordpress microblog that requires no external services! – Just plug and play away!
</li>
<li>
A recent activity tracker for your blog – from comments to posts.
</li>
<li>
Mobile microblogging UI for any wap enabled phone.
</li>
<li>
Full control over the layout and design of your microblog.
</li>
<li>
You steer the boat! If you have any feature requests or bugs, I’m more than happy to implement/fix them for you!
</li>
<li>
!NEW! Generate an RSS v2.0 feed from the microblog!
</li>
</ul>
<h3>Arbitrary section</h3>
The release plan:
1.1:
<ul>
<li>A post management system that will allow the admin to quickly and simply edit, delete and add posts to they’re microblogger.</li>
<li>Improvements to the mobile blogging pages (nicer UI ETC).</li>
</ul>
1.0-RC4:
<ul>
<li>Post microblogs to twitter automaticly!</li>
<li>More bug fixes followed by a 2 week gestation period in which time if no more bugs are reported microblogger will hit 1.0-FINAL!</li>
</ul>
Release notes:
1.0-RC3:
<ul>
<li>Critical bug fix release.</li>
</ul>
1.0-RC2:
<ul>
<li>Admin user experience vastly improved with tick boxes – no more ‘TRUE’ or ‘FALSE’ – thanks for putting up with that.</li>
<li>1 Low-key bug squashed.</li>
</ul>
1.0-RC1:
<ul>
<li>RSS Feeds can now be generated by the plugin!</li>
<li>A multitude of bug fixes in various different areas.</li>
</ul>
1.0-BETA4:
<ul>
<li>Mobile UI now able to connect to DBs that have different usernames to that of the database. — Thanks go to David for pointing this out.</li>
</ul>
1.0-BETA2:
<ul>
<li>Added the write microblog widget to the backend – also the settings to turn that on|off.</li>
<li>Most likely fixed a bug that stopped some users accessing the microblog menu. If you find this is incorrect, please contact me!</li>
</ul>
1.0-BETA1:
<ul>
<li>Initial Release</li>
</ul>

microblogger

Microblogger allows you to post quick comments to your readers, without need for an account (as the twitter etc plugins do) - even from your mobile!

Narwhal Microblog vs microblogger