Yes, unfortunately it only credits the primary line, second lines are not qualified, which in my opinion is unfair. But what helps, is purchasing the phone online instead of instead instore. When we went to the store to look at the phone and ask questions, the $100 rebate would have to be paid up front, then I would have to mail in my receipt, and copy of the USB Code on the carton and wait 6-8 weeks for it back.
I wasn't ready to dish out that extra $200, besides, from my past experience prior to me getting our Razer's 3 yrs ago, I did all that, and still didn't get my $50 back, even after 2 attempts at the counter reporting my problem. So I didn't want to risk it, again.
So, I ordered it online Firday night, got notice it was shipped on Sunday, and received it yesterday, without having to dish out the extra $200, with FREE shipping on top of that....so total savings was $200 instant online rebate w/2yr contract, $50 NE2 credit, and $50 accessarie discount for a total of $300...not bad imo...
So, this DROID is up for a credit in 20 months on the primary, which isn't too bad.