Following BlackBerry's own offer of a $100 discount on device purchases from ShopBlackBerry, T-Mobile CEO John Legere has now laid out the same offer in an open letter for loyal BlackBerry customers discussing the changes and expectations.

If you’re already with T-Mobile, you can continue to count on us for the great service you’ve come to expect, the regular OS updates, and, of course, America’s fastest nationwide 4G LTE network. None of that changes as far as we’re concerned.

And, if you own any BlackBerry that works on our network and also want the fairness and freedom that comes with being a T-Mobile customer, you can bring in your BlackBerry any time and enjoy Un-carrier benefits like no annual contract, unlimited everything with no overages on our wicked-fast network, no hidden device costs, no upgrade wait – and international roaming at no extra cost. And, don’t forget, you get to enjoy your BlackBerry with all of these Un-carrier advantages on America’s fastest nationwide 4G LTE network.

In fact, to show our appreciation for all current consumers so passionate and loyal to all things BlackBerry, we’re offering a $100 credit toward any new device, including the BlackBerry Q10 or the Z10. And this offer is good through the end of the year. So you can take your time.

One thing you can count on from us: we’ll keep listening to you and finding new ways to meet the needs of BlackBerry users – individuals and businesses – everywhere. But we’re not done. Stay tuned for another Un-carrier offer that gives you more value and even more reasons to stay with America’s fastest growing wireless company.

It's a nice sounding letter but whether or not it'll have any impact on customers remains to be seen. T-Mobile CEO John Legere has been pretty vocal about the situation since it came to light but some of his responses to the BlackBerry community haven't been well received. One thing is undeniable though, T-Mobile is certainly still listening and communicating even if some of the answers aren't the ones people want to hear.