I currently have the Sidekick LX '09 with T-Mobile, but with all the network screw ups they've been having and the poor coverage in my area, I've decided to join the rest of the smart people in the world and go with Verizon lol.
I LOVED the Sidekick and used it for years - mainly because I'm a texter... But lately all the other inconveniences haven't been worth it and I've researched LITERALLY MONTHS to pick a new phone. Finally narrowed it down to a few, and so far the highest on my list is the Motorola Droid.
One of the biggest complaints I have with the Sidekick is the SMS folder capacity. Once you've reached 100 texts (including long individual texts that are say, 2-5 msgs long), it starts to delete your messages. It's been this way on all the Sidekick models and I've complained about it every time lol.
What is the SMS (and MMS) folder capacity?