Tracy if you are looking for a phone of the same playing field as the Sidekick actually better,

Look into phones like
palmOne Treo 600
palmOne Treo 650
Blackberry
Siemens SX66

Those are kick ass phones if thats what your looking for...
My girl had a Sidekick and I played around with it was aight....
I personally have a Blackberry 7290 and it will kick its ass anyday of the week.

This phones are not cheap, But I rather have a piece of shit Nokia from Metro PCS over A sidekick w/ tmobile.