MICHAEL WENYON  Just another report of good customer service from MichaelG at SRS Labs: I needed help with an upgrade and he emailed me the solution straight back.

As noted elsewhere, to use this with an Airport Express, I had to use Airfoil to capture the output from iTunes. After that, sounds great!  
(Version 3.1)

MICHAEL WENYON  I bought iWow in the original offer and accidentally installed it on too many machines (that is, on machines that I no longer own or no longer use, or don't use with iTunes). I could never get the old machines to unregister themselves, so I lost the ability to use the product before I settled on my current iTunes machine.

Will the upgrade give me a new lease of life, or will I only be able to upgrade it on the machines I no longer want it on?  
(Version Upgrade)

MICHAEL WENYON  When Safari downloaded this, it had a '.bz2' extension, even though the file was actually the dmg itself! I just deleted '.bz2' from the name of the file and then it opened and mounted. Installation of the application itself by drag and drop was OK to my windows-formated USB drive (FAT 32) and it all works same as desktop version after transferring preferences, including OTR encryption. Great!

If this extra '.bz2' extension happens to you *do not* double click the file while it is still named with the '.bz2' extension--that will just launch a process that actually messes up the dmg and renders it unreadable by the system.  
(Version 1.2.1r4.0)