Months ago I had three friends ALL OF WHOM sent back their Clie for servicing, and weren't happy.
Increase that number now to FIVE friends.
I wouldn't personally buy a Sony PDA - although I'd buy just about anything ELSE Sony made. My 717 camera is amazing.
As for the software, it may turn out that the developers are so fed up with OS6 nightmares they WILL IN FACT continue to support OS5, and since so many are writing now for Sony that number may not drop much - which of course would be great for Sony users. I think there are just too many "in the marketplace" to ignore and hopefully OS5 stuff (which I WILL BE looking for!) will continue to support the "older models" -- older being Sony's and the T1/T2/T3/TE series handhelds.
Let's hope so anyway - I'm counting on it, believe me.