Yep, a server side script on my webserver changed the _ and + to -. I was not aware of this. Corrected. I guess I should have tried at least once what I posted
Yes, on my n800 it also defaulted at the first launch to disk writer. I went in the configuration (tap on the little O) and go to preferences, then in Audio Plugins, for output, select eSound Output Plugin, the other one probably writes wav file directy (example for recording radios on disk)

But I don't experience the problem you mention.
Could you tell me what version of osso-esd you are using?
That's what I have:
/tmp $ apt-cache policy osso-esd
osso-esd:
Installed: 0.52-3
Candidate: 0.52-3
Version table:
*** 0.52-3 0
500 http://repository.maemo.org bora/free Packages
100 /var/lib/dpkg/status
0.17-1 0
500 http://repository.maemo.org mistral/free Packages
I could remove this latency stuff but not before I understand what's going on.
Are you using any effect plugins? Like the Echo Plugin?

Thanks a lot for the feedback.

I'd like that more people try it. Am I the only one for who it works??