WordPress.com blogs get premium paid-for themes
For starters, only two themes can be purchased: Shelf, pictured above, and Headlines, a screenshot of which is available after the break. Shelf is a very responsive tumblelog-style theme that features a fluid design. It can be yours for a one-time price of $68. Headlines is a magazine-style theme that comes with a Featured Post slideshow, multiple menus, and 15 different color schemes. It can be yours for a one-time price of $45.
To purchase and install any of these themes, go to your WordPress.com Dashboard, and click on the Premium link in Appearance > Themes.
Automattic plans to have many more premium themes available later this year, alongside a great number of new free themes. Those who purchase Premium WordPress.com themes will get full access to a dedicated support forum that will only be accessible to Premium theme buyers.