
Say what you will about Dave Winer, he's hard to ignore in the blogosphere. Recently Dave released
YoMoBlog, a web-based blogging client for mobile devices like Blackberries, Treos and Pocket PCs. All you do is fill out a few fields on the start page (which we've linked to above), which include blog url, email address, username , and password, and if all goes well you should be able to post directly to your blog.
In my tests I found YoMoBlog to be extremely slow, but I'm sure that can be chalked up to weird internet inconsistencies. Otherwise it seemed to work fine. Note that your blog engine must support the Metaweblog API for this site to work.
Personally I'm not big on entering text into a mobile device, but this service could be a godsend in the event you're in a situation where blogging in a timely fashion is critical. Of course, the fine print says, "This is experimental software. Please back up your data. We are not responsible for any loss in service or loss of data entered into the system. Will not use your personal information for any purpose other than to allow you to create and edit posts on your weblog. The security of the system is very simple, don't trust it for sensitive information. We make no guarantees about performance, uptime, and we may cancel the service at any time, for any reason, at our discretion.", so you certainly wouldn't want to build a business around this service, or rely on it as your only mobile blogging solution.