I don't think you can expect a HTC QWERTY slider on Verizon. They have Motorola DROID series for that; do you honestly think they'd ask HTC to make them a new device that duplicates an existing one?
The main issue with Verizon is that they need to get manufacturers to make phones almost “exclusively” for them due to using CDMA as the standard. Most Android phones are GSM because GSM is present everywhere.
You should do more research before you make your posts...
Verizon is NOT the only CDMA carrier in fact there are more CDMA carriers in the US than there are GSM carriers!
Sprint the chief rival.
HTC already makes a slider phone. CDMA ONLY too! It's called the HTC Arrive and used to be known as the HD7Pro.
It is available in a Win7 Phone!
They also make the EVO Shift 4G if you want a Slider with Android.