SP1 and SP2010 June 2011 CU

Overview:  There has been a lot of chatter on twitter about SP1.  I incorrectly installed SP1 on a dev machine and after reading "So what the Fuss? - Service Pack 1 and June 2011 CU for SharePoint 2010" from Spencer Harbar I thought I'd summerise the correct approach as detailed in Spencer's article.
Notes:

• MS has released SP1 for SP2010 and June 2011 CU on the same day 27 June 2011. 
• There are seperate downloads for SPF (SharePoint Foundation) and SPS (SharePoint Server) updates, you should install both.  Install the SPF update first followed by the SPS update.
• June 2011 CU is not part of SP2010 SP1, only install the June 2011CU if directed by MS and wait a month to see the fall out regardless.
• SP1 contains all CU updates including the April 2011 CU plus some other updates not in any CU.

From Spencer Harbor's blog regarding installation order "I approach the installation like this:

1. SPF SP1
2. SPF language packs SP1 (as needed)
3. SPS SP1
4. SPS language packs SP1 (as needed)
5. OWA SP1 (as needed)

If it asks you to reboot, reboot once after the installs, not each time it asks. Then of course you run PSConfig on each server in the farm.".

As always test updates on your DTAP environment pre release onto production.

More Info:
http://blogs.technet.com/b/office_sustained_engineering/archive/2011/06/29/sharepoint-2010-sp1-and-the-june-cumulative-update-for-sharepoint-2010.aspx
New features added by SharePoint 2010 SP1
http://www.sharepointjoel.com/Lists/Posts/Post.aspx?ID=444
Patch SP2010 farms