Having poked around with it, I have noticed the following – based on the incomplete version that I found on their site:

• It looks good
• Classifieds are integrated neatly into the system
• A good chunk of the data is hosted on Amazon S3 – profiles, events, places, top traffic sites, etc.
• The TG and MG are in separate S3 buckets
• It appears to use new secondlife:// features – specifically, secondlife://app/event/*/about, secondlife://app/classified/*, secondlife://app/agent/*/about. Visiting these with the RC client open made it crash. That said, clicking most buttons made it crash, so that’s not saying much.
• Teen Grid and Main Grid results are not separated. I assume that this will change, given the separation of their data.
• It searches wiki.secondlife.com.
• A good deal of the data isn’t on S3 yet, so many links just tell you the key couldn’t be found.
• Main Grid profiles default to visible, but Teen Grid profiles default to hidden.
• Parcels have a list of searchable objects on them along with their prices, arranged in alphabetical order. Their parcel image is also visible.
• Boolean operators such as “NOT” work as expected.
• The search does not apply to the owner of something – e.g. a search for “Alex NOT Harbinger” still returns things owned by Alex Harbinger.
• You can now grab limited resolution textures off the web at http://secondlife.com/app/image/texture-key/2 – this is used by the search to provide images.
• The popular places lists, which appear in search (but probably shouldn’t), show sandboxes that are hidden from popular places in the current system.
• Objects that aren’t for sale tend to appear in the object listings. Oops?
• Avatar names tend to be just “(waiting)”, although the profiles they link to are accurate. I have yet to find any marked as “(hippos)”, however.

Also, lots of people seem to have expensive objects called “Object” for sale. It’d be nice if those were filtered out. The information seems to be fairly up-to-date, but is definitely slower at updating than the in-world stuff.

Of course, this is presumably supposed to be unreleased, so it could all change at whatever time. Still fun to look through though. And it actually looks like it’s a significant improvement over what we have now, woo.

Just need some way of separating out the MG and TG results. I suspect that LL will achieve this by locking searches to one of the two buckets depending on which grid you use.