In recent years, many new users have started using Macs. This means that there might be software that long-time Mac users know well and use on a regular basis, but if it hasn't been updated or publicized recently, new switchers might not know about it.
Long-time Mac users, what software do you use on a regular basis that is
1) compatible with Lion (so it runs in a modern environment) but
2) not recently publicized or receiving a major update, so it might be off the radar screen of new users?