Wordpress has released the module for Apple iPhone . The first Open Source app that lets you write posts, upload photos, and edit your WordPress blog from your iPhone or iPod Touch .
The Apple iPhone WP module works with Wordpress hosted blogs (free blogs), self hosted Wordpress blogs (that is, if you pay for your hosting & maintain your own blog) for all versions of Wordpress 2.5.1 and higher.

SMS Text Message is a plugin for WordPress to allow blog owners update their readers via SMS. Although I would not call it an Essential Plugin , the free WordPress Plugin to send SMS adds a nice trendy feature to the blogs.
With so many people depending on their PDAs & phones to socialize on the internet & even to browse, this plugin could help bloggers send out updates or important messages to readers.
The SMS Wordpress plugin is created by Michael Torbert.

Even though blogs have been in the industry for almost 10 years now, their popularity is just rising as the new collaboration tool. And there are 3 tools that are gaining a lot of popularity when it comes to finding popular blog posts, popular searches in blogs and trends on what people are writing about.
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Trendpedia from Attentio , Brussels.