I just went into a sprint store and was told the following:
A. At the store, they can't activate MY mogul without a 2 year contract. Customer service might be able to waive that, but they weren't sure.... That's pretty crappy since I own the phone, hence, no phone subsidy.
B. My total bill was something like $114.62. The only addition was $7/mo for insurance... Taxes were only like $8/mo.
C. Unlimited really is unlimited.. There are no caps on anything, and the only upgrades to the plan are insurance and "phone as modem", which anyone who has a mogul doesn't need.
D. Sprint doesn't charge for ESN changes... If I were to switch, I'd probably end up getting a RAZR or KRZR, so I could use my mogul most of the time, and switch to the smaller phone when I'm going camping, to the lake, or anything else I don't want to take my nice PDA to do.
E. Their literature in the store said the offer was only good until 5/31/08, so if you're interested in switching, you've only got a couple months to do it.
All in all, I'm still not going to switch, but I was pretty tempted. If they had told me that I didn't have to sign a contract, I might have become a sprint customer today..... and if Verizon or AT&T change their plans to match this, I WILL be leaving cricket.