The Milestone 2 has already been revived once – a few months ago it was discontinued but then became available again a month later. This time we’re less likely to see a return with similar device such as the Pro+ and Xperia Pro available to purchase.
The Milestone 2 was a popular Android slider, competing with the HTC Desire Z when it first launched. The Droid 3 (the handset that would have been the Milestone 3), was launched in the US only last year so Motorola has not released a direct successor here in the UK. However, anyone looking for a Motorola handset with a physical keyboard should consider the Motorola Pro+, which offers a superb range of business and security features in a pocketable design. Check out a review here.
A more comparable alternative in terms of form factor would be the Sony Ericsson Xperia Pro which, like the Milestone 2, has a slide out QWERTY keyboard. While the Xperia Pro does not have the business security features of a Motorola handset, it does have some other benefits such as a Micro HDMI port and 8.1 Megapixel camera. For a more thorough comparison, check out the device comparison tool on the Clove website.