This post outlines a few of the recent updates to GPSLog Labs:

• The average speed is now displayed for each 10km, 5km and 1km on the Speed vs Distance graph for a log. Likewise, for 10 minutes, 5 minutes and 1 minute on the Speed vs Time graph. As for the Splits, a maximum of 50 of these averages will ever be shown so the graph doesn't get too crowded.
  
• The in page help has been changed so that the "bubble" now minimizes to a little blue question mark icon off to the right hand side of the page. This makes it easier to view it again if you need to get some help on something in particular on the page.