Last thing I did (earlier this week) is to compose a 30 sek tune for a podcast. I used OctaMed on my Amiga 3000 and a Yamaha TG100. I recorded the music with audacity running under Windows 7.
Then I used AmigaOS 4.1 on a SAM to mix and cut the podcast and uploaded it with PetesFTP to the site. I used CygnusEd on the same box to hand-code the RSS and related files.
If however UAE counts, I was just (lamely) browsing some old CDs (yesterday) and installed Amigantt - just in case.