If you can send mail form your phone, you can post to LJ that way. There's something about it in the FAQ, I think... You have to set up a validation password, then you just send to (username)+(validation)@livejournal.com. I think the documentation is here (http://www.livejournal.com/support/faqbrowse.bml?faqid=187). It looks like it's a little more complicated than I remembered. It's all explained there, though.
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