I've used a couple of the recent versions now. I haven't experienced any of the crashes others talk about, but as I have neither an Orange nor a Sunrise account, I have been using the Romandie service, and therefore have not fully tried the program. The author has improved the interface in the latest version, with SMS history becoming much more viewable. It also integrates very nicely with your existing address book. However, some flaws remain: 1) The Romandie service appears to cut off the last 40 or so characters of each SMS. Therefore, if you send a 400 character message, you lose two 40 character sections in the middle of your message. This is annoying, to say the least. I have contacted the author about the issue, but do not know if a resolution is imminent. 2) When you send an SMS, it ignores the current sort order of the history and simply inserts the latest message at the bottom of the list. Ideally, it should consider whether the messages are sorted by sender, date, ascending/descending or whatever and insert itself in the appropriate position, or as a hack, simply insert and resort according to those parameters. Oh, I'm running on a MacBook Pro 15", purchased in Jan '07, and as I mentioned, no crashing.