T-Mobile will unveil some changes to the company’s JUMP! device installment plans on February 23rd, and while they’re heavy on “unlimited” language, the plans are actually getting a bit more restrictive for customers. First, in the “good news” departments, tablets are joining the JUMP! family of devices, so you’ll soon be able to finance a tablet from T-Mobile. The next piece of news is definitely a bit of marketing speak – JUMP! upgrades are now “unlimited.”