Think I'll pass. Waiting on the 900. Just to help head off any jaw drops at price, and stealing from a post at the linked site
"$899 is expensive, but then again, the Purity HD headphones MSRP = $199, Play 360 speaker $149 and Luna bluetooth headset $79 so $427 of that is accessories, making the device $472."
Of course you hope there is some bundle savings, so the phone is likely more so that the total price is over $900 and 'bundle' means something.
Given it is an unlocked device and an unlocked iPhone 4s is ~$650, that's a reasonable price. I think the Lumia could be favorable compared to an iPhone 4s, especially if you don't just go spec by spec. There is more to the experience than just raw numbers.
Sometimes you are the anteater, sometimes you are the ant.