It appears it has been released to bell canada and is not wireless specific.

I loaded it up and was able to easily add my bes blackberry to unite.

Some things it adds

- a download manager that allows you to grab files off of the computer running the software. If you are on the local wifi, it downloads to sd card. Otherwise anything over a 1 meg you have to use a usb cable.

- a new browser option - this is key to getting around my bes and its layers and filters... make unite default browser and I am using my local home internet and not the saturated work connection.

- calendar and contact catergories that sync in real time with all devices attached.

- make any pop or imap, into direct push via unite software (watered down bes able to run locally on xp or vista).

- It works and it is free!

Hooray!... this is the holly grail! this is actually better then os 4.5 imho

check out the link
AWESOME!!! Bell’s BlackBerry Unite Works On Other Carriers!!! | BerryReview