Danger Developers are receiving an email from Microsoft/Danger informing them that the sales of “one-time donload content” will be discontinued as of March 2nd. Yes, as in tomorrow. So if there was ever a theme, ringtone, or app you wanted to purchase from the Sidekick catalog, you better grab it today.

Free stuff and subscription based apps will remain in the catalog. After tomorrow it sounds like the only way to get ringtones or themes will be via the free sites: Sidekick-Themes and Skringers.