[development] creating forward compatable modules?

[Tao Starbow]

> http://drupal.org/node/22218
>
Thanks. I had hoped there was some way to emulate the new 4.7 
infrastructure in 4.6.  I guess I will wait on the 4.7 issues until we 
upgrade everything.

>> Also, does anyone have advice on how to calculate how many Drupal  
>> sites a server can handle?
>
>
> Bryght runs over a thousand.  It's totally traffic dependent.
>
Over a thousand sites on a single server?  Wow, that is much more 
scalable that I would have guessed. I am coming from the JSP world, 
which is more or a resource hog.
Is there a more useful metric, like total simultaneous authorized users 
or total hits per hour?  How does Bryght make the call, "time to pop 
another server in the rack"?