T-Mobile Launching Limited Time Unlimited Plan Tomorrow (Updated)

T-Mobile has announced the Wednesday launch of a new single line unlimited plan on Even More and Even More Plus plans for $79.99 and $59.99 respectively. The plan features unlimited data* (up to 2GB before throttling), unlimited domestic calling, and messaging, with an additional $5 surcharge for BlackBerry owners.

Update: T-Mobile has sent out an internal memo to employees stating that the $59.99 Even More Plus offering as detailed in the press release was in error and should not be offered to customers. Meanwhile, various reports confirm that the offering is still available to customers and is still active. The memo goes on to state that the plan will be removed completely overnight. Those that were able to acquire the $59.99 offering will be allowed to keep the plan as originally detailed.

Update 2: T-Mobile has issued the following statement regarding the situation, contradicting the internal employee memo and its own press release from yesterday:
“T-Mobile did not officially announce any rate plans yesterday, and the company doesn’t comment on rumors or speculation. Today, T-Mobile officially announced a new, single-line unlimited plan that is available starting today for just $79.99 per month, with an Even More plan and a two-year contract.”

Update 3: Customers that have acquired the canceled $59.99 offering are reporting receiving the following information for the plan via the MyT-Mobile account management portal and via text message:
Promo EM+ 2GB 4G Unl DTT SP11
Unlimited Whenever Minutes
Unlimited Weekend Minutes
Unlimited Weeknight Minutes
4G Web – Unlimited