You guys should present your pricing in a 2-column (Free and $10/Month) grid, in which, if i'm correct, the columns have identical checkboxes except for one... the $10 has one more row with a checkbox: "More than 25 devices can connect". Here's an example: http://www.icebrrg.com/signup/default.aspx
Make sure to use columns and checkboxes... don't repeat the feature names. That's where the instant comprehension comes from. Background: I'm writing to my worldwide usability department about Kumulous and I had to dig through the site to even find the reference about 25 devices being the limit for production deployment.