The Sidekick is almost always used horizontally, even if you're not using the keyboard. The screen is always oriented that way, and so that is how the device was designed to feel best in your hand.
This update to the SK3 steps up to a much better display - the same one Sharp uses in its top-end phones for Japan. Other upgrades include quad-band GSM, a lighter frame, MMS, and a 3.5mm jack for ...