Atlanta: Groups is an interesting idea, though I don't know that it really fits our listings (and I'm not sure if we can get that data easily from XM/SIRIUS.

An EQ may or may not make an appearance - for now, using Pulsar with Audio Hijack Pro or Airfoil provides this.

Last.fm scrobbling support is something we'll consider, though I'll admit it's not a top priority. Artist alerts fall into the same category, actually.

Chris: AirTunes output is unlikely to be found in Pulsar - that's why we have Airfoil. As for a remote app, we'll consider this, but that's a lot of work for something that right now would be very niche (The small group of users who have an iPhone and are using Pulsar). We'll see what happens in the future.