If you’re still struggling to come up with the perfect Mother’s Day gift idea, you should listen to your mom and stop procrastinating so much, or just think about picking her up a new smartphone from T-Mobile, which is offer a $100 per line service credit on new activations made this weekend.

The tricky bit is that this promotion doesn’t seem to be running in all areas, so you’ll want to check with a local T-Mobile store to see if they’re involved in it. Up to two lines on a family plan can qualify for the credit. While we can’t work out the details from the blurrycam shot of T-Mobile’s advertisement for the promotion, there’s a chance that it may be restricted to phones activated on the carrier’s $80/month unlimited plan (with 2GB of data before throttling kicks in).

If you do your shopping online, it’ll be too late to get the phone in time for the holiday this Sunday, but you’ll have your choice of a few free phones, including the Samsung Galaxy S 4G. One way or another, you should be able to find something to make mom happy.

Source: TmoNews