If you bought it from Verizon and have any ties with them in any way with this device, it will definitely NOT work.
Most likely, it will not work anyway since 90% of the merger is complete. It will be finalized very soon. Once it's finalized, whichever markets of Alltel's that now belong to Verizon will be owned by Verizon and Alltel will no longer exist in those areas. Where Alltel still remains (or another carrier operates them there), it will rely on their activation policies.
Also, this thread is inaccurately titled...I just noticed it. The phrase "Alltel/Verizon Wireless Merger Questions" would make someone think that they hold equal parts in this relationship. It would make you assume that they are coming together to provide you bigger, better services. THIS IS NOT A MERGER. This is a carrier buyout. There's a difference. Verizon Wireless OWNS Alltel and Alltel will no longer be a company. The services of Alltel will be slowly outdated and discontinued as Alltel customers upgrade or change their plans/services. An example of a merger is Sprint PCS with Nextel. They both are still alive, just owned by an individual carrier.
Even the carriers sometimes confuse the phrases.