Now What?

I just read an article about how they've discovered a new way of relatively large amounts of positrons- but don't know what to do with them. They can't store them because any container is matter, which reacts instantly with antimatter, and they don't know what to do with the resulting gamma rays.

http://www.foxnews.com/story/0,2933,459544,00.html
http://www.cnn.com/2008/WORLD/europe/11/20/sbm.overview/index.html?eref=rss_topstories
http://www.cnn.com/2008/POLITICS/12/01/zelizer.centrist/index.html?eref=rss_topstories
http://news.nationalgeographic.com/news/2008/12/081201-jupiter-venus.html