First off, I agree with your arguments since I love the HTC design forms. However, the G1 is an HTC product. Likewise, the Samsung behold matches the design scheme your looking for, the new Samsung Memoir will match that too. I'm going to guess though that you will want a messaging phone since you want to see a nice looking sk. Hey, I would love to see a sleek sidekick just as much as the next text happy person, but you may want to look more at the upcoming HTCs, maybe like the new wing.
The sidekick is going to really need to pick up its game to compete in this market, they aren't going to want to be like the N97 (where it will be outdated by the time it is released)