Does it rule out PostgreSQL from being released with Debian as there are commercial/non-oss extensions to it like EnterpriseDB?

Sure, the non-GPL "Enterprise Edition" will not make it into any distribution, but for the GPL edition licensing would not be the reason for not distributing it any longer (although other reasons may lead to one of the forks becoming the default and Oracles GPL version only an alternative, but this will for sure be not for license reasons alone if/when it happens ...)

As if PostgreSQL didn't have it's own ecosystem of commercial-only extensions, too (EnterpriseDB, GreenPlum, just to name a few) ... the big difference here is that in the MySQL ecosystem Oracle is the only one that can do such dual-license stunts while in the PostgreSQL ecosystem anybody can ... (whether that's good or bad is a different story)

For "improvements"/"what's been added":

* lots of multi CPU scalability work (although part of it came from Google/Facebook and other sources where Sun/Oracle 'just' did the integration work)
* MySQL Cluster got a *lot* better in Sun/Oracle days
* the InnoDB plugin improved InnoDB affairs a lot (and this has been Oracles baby even in the Sun days)
* connectors, e.g. PHP/mysqlnd
* more interesting InnoDB improvements (e.g. fulltext indexes, finally) are in the queue, how these are going to be licensed remains to be seen though

It's not that everything is going into the optimal direction with MySQL under Oracle (i'm not working for them anymore for a reason), but saying there has been no development ever since the Sun acquisition is not fair, and i don't see any reason to believe that things will radically change on day 1462 either ...

> (do I have a right to stop someone making public a photo of my home on the Internet?)

by German law:

* If it is not visible from public ground (street, sidewalk) then you have
* if some temporary copyrightable installation (e.g. a piece of art, a banner) is part of the picture then you have
* if the picture does not only show your home but also yourself you may have (unless you are just part of a crowd)
* if none of the above applies then the right to take pictures of things visible from public ground ("Panoramafreiheit") kicks in

What is still being debated though is whether making such photos public in the form Google Streetview does, with fully geo referenced lookup capabilities, is still covered by "Panoramafreiheit" or not.

So you may have a right to stop Google from publishing the pictures of your house on StreetView,
but you would have no right to stop anyone from publishing pictures (even with GPS location information)
who doesn't do this in a large scale systematic way in Germany.

The background of the "Panoramafreiheit" law is simple: without it you could hardly publish *any* picture taken on a public street as avoiding to show any houses on these would be next to impossible in most cases. So it was decided that your copyright on the look of your house is a less important right than the freedom to take and publish photographs, whereas your personal privacy takes precedence as soon as you yourself are part of the photo (again: unless you're just part of a crowed, or can't be recognized...)