Many small-medium sized businesses have relied on the BlackBerry Enterprise Server Express service. However, BlackBerry Enterprise Server Express 5 looks to be the final free version.

The free BES Express 5 model gave small-medium enterprises free client access licenses. Unfortunately, there doesn’t appear to be a BES Express 10 planned, which means there will be no free-of-charge model.

RIM has yet to announce BES 10 pricing. Though, ZDNet has learned it will be a free installation, but RIM will charge for devices that connect to the server.

RIM has been quite generous with allocations, allowing for 2,000 BlackBerry smartphone users per server. Due to the Express version not being brought forward to BES 10, small-medium enterprises will likely incur additional costs to run both newer BlackBerry 10 and legacy BlackBerry 7.1 or older devices on the same network.