SmileOnMyMac has been putting in overtime on TextExpander lately. They released version 2.1 recently followed very quickly by version 2.1.1 and now they are releasing 2.2. The newest version adds a snippet group for common CSS code for all the web design jockeys. It also limits "Adapt to Case" to lowercase snippets and to abbreviations with two or more characters to avoid problems with those expansions.
I've been using the upgraded version today for awhile and still occasionally run into a problem when typing fast and the text gets jumbled into the snippet. That frustration aside, TextExpander is still one of my all time favorite applications on the Mac. Lets hope they figure a way to put their magic onto an iPhone where this application could be extremely useful.