Click the above or click this link: http://refcardz.dzone.com/announcements/netbeans
It specifically covers the Java editor (no way could it cover everything the IDE offers, so choices had to be made), future NetBeans cards could cover other languages (Ruby, PHP, Groovy, etc) or specific technologies (Mobility, Java EE, etc), for which proposals are welcome. Also, it is specifically focused on NetBeans IDE 6.1, an update will be published when 6.5 is released. Suggestions for improvements (and corrections) that will then be implemented in that release are welcome. Thanks very much to the reviewers (listed at the end of the card) and Jill Tomich from DZone for being patient and great to work with.