WordPress.com Enterprise, announced on the WordPress.com VIP blog, combines the two aspects of WordPress.com hosting that we’re familiar with: the paid upgrades of WordPress.com with the vetted plugin selection (70 count) and support of WordPress.com VIP. Enterprise is now available for $500 per site per month.
To put that $500 per month in perspective, WordPress.com upgrades (domain name, space upgrade, custom design, etc.) comes it at $99/year and WordPress.com VIP starts at $3,750/month. Enterprise, like WordPress.com upgrades, will cover just one site at a time, while VIP will cover up to five websites.
The Enterprise option does limit users to 70 approved plugins, so full control of sites shouldn’t be expected.