Here's some more info from Nokia's PR department:
I know you all want the skinny on the 5530, but you already know it from the game. Yes, this phone has a large touch screen with tactile feedback (I like to say it touches you back) and no physical keys; a 3.2-megapixel camera and LED flash; Bluetooth, WiFi, and EDGE for all your connection needs; a music player for all the stuff you download from the Nokia Music Store; widescreen video playback at 640×360; hot-swappable MicroSD slot (4GB included); and a standard 3.5mm audio plug for your rocking headsets.
It’s all about quick access. There’s the Media Bar drop-down that’s also on the Nokia 5800, for quick access to the music player, browser, and photos. But on the Nokia 5530 XpressMusic, you can also define 4 shortcuts for the home screen (say, for Facebook or MySpace quick links). Also, one of the big additions, we think, is the new Contact Bar that lets you have up to 20 contacts, making it easy to quickly call or send a message, review conversation history, or follow the contact’s feed. It’s like a quick dashboard on your 20 most important people. What’s more, add a pic to those contacts and your peeps are front-and-center.