Whether you'll be updating to OS X 10.7 Lion the second you can get it onto your machine or waiting to see how things shake out, there are a few things you should probably know about the downloadable AppleScripts from this site.
1. Scripts that use PowerPC helper apps. As has been frequently mentioned elsewhere since mid-June, PowerPC-only applications will not run on OS X 10.7. There are a small number of scripts that use bundled PPC helper apps and I will gradually be rolling out updates for these scripts for use exclusively on Intel machines (running Lion, Snow Leopard, and the rare Intel machine running Leopard). The older PPC versions will still be available via a direct download link from a script's entry page; they will not be updated with new features and remain as-is. I made this decision based on stats from my traffic logs which indicate that about 3 percent of visitors to this site are on PPC machines (a number that is shrinking rapidly). Everyone else is using Intel.
2. Older script applets and droplets--those written long ago on PowerPC machines--will run on any machine but you may have to open them in AppleScript Editor and re-save them. This was an issue when Snow Leopard was introduced as well. I suspect that if you are regularly using any of those kind of scripts you have already updated them yourself. I will not be updating any of these; indeed, for the most part, I haven't had to for Snow Leopard and there aren't that many anyway.
3. Scripts designated as Universal should have no problems (unless they use a older helper app, see 1. above).
4. Scripts at end of life. Many scripts in the Retro Scripts category will be removed. I'd like to keep these old-and-in-the-way scripts posted as long as possible but some of them are just plain obsolete (CDDB Safari Kit, Search WIth Sherlock, Import SoundJam Playlist, and so on). This gives me an opportunity to clear them out.
I can't test every script and your help will be greatly appreciated. If you experience any problems with my scripts during your transition to Lion don't hesitate to let me know. Please use email; I can't keep a record of tweets.