I'm sorry ...

I've invited you as coauthors (共同筆者）of this blog, so as soon as you accept my invitation（招待を承諾するとすぐ）, you can start posting to the blog.

I said in class that you can post from your cell phones, but I've found that only the owner - me, in this case - can do that, and co-authors can NOT. I'm sorry :-(

If you're interested in posting fron your mobile phones, then you should create your own blog. It's simple and I can help you.