I just went to the HGTV web site. Their program guide (I checked 1 Feb 07), list of "What's on TV", "Shows Z-Z" all still include Simply Quilts. So either they've kept it on after all or they haven't updated their web site.
I'm already at the office before 8:30 most days, so won't be able to check until Monday morning. I'm going to be really cranky if they've cancelled it. Crankier still if I can't access all the episodes through the web site. Talk about a treasure trove of ideas, instructions, web links, and inspiration!!!
For as long as it lasts, the link to the list of all episodes is
http://www.hgtv.com/hgtv/episode_archive/0,1783,HGTV_3876_54,00.html