Stickshift Software has released Mailsmith 2.3.1, which fixes a bug that prevented Space-bar navigation from working properly, plugs some memory leaks, and avoids checking the installed version of SpamSieve to avoid problems with newer versions of SpamSieve. (Free, 25 MB)
Editing iCal Events in Snow Leopard
Snow Leopard makes looking at event details in iCal easier. In the Leopard version of iCal, you had to double-click an event to reveal only some information in a pop-up box; you then needed to click the Edit button (or press Command-E) to edit an item's information. In Snow Leopard, choose Edit > Show Inspector (or press Command-Option-I) to bring up a floating inspector that provides an editable view of any items selected in your calendar.