How are the LED's on the N900? How many LED's and are they customizable for alerts?

And what would you say is like one or a couple of the N900's top strengths besides the 32GB and physical keyboard...or like big advantages or stuff that's worth it over the Nexus One or Android. I think I still might want to go ahead and buy this one and give it a shot just because of the physical keyboard. Don't know if I could deal with a phone without a physical keyboard. I think I might be able to last with the Ovi Maps and I can always use Google Maps/Mapquest in the browser easily right? And I have 2 Garmin's at home so that's good. Thanks.

Also is there any way to tether from the N900 yet? Like if I wanted to tether my T-Mobile 3G to my laptop/computer/PS3/360, I can do it on my G1 easily with a wireless tether app for HTC Android phones...would be nice if the N900 could tether. Not really needed but it'd be a plus.