Hi Juergen,
welcome to Pharo (and Seaside). It would better to ask these Seaside
related questions on the Seaside user list since this mailing list here
is the general list for Pharo users and your question is more related
to web development and Seaside.
So please ask you question on the following mailinglist
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seasideJQuery Mobile for Seaside may not have been updated yet since
Seaside 3.1. is very new.
Last demo of JQM I know of is
http://jquerymobile.seasidehosting.st and it
is running on 3.0.
BTW: there is also a Seaside developer list which is for people who want to
contribute to Seaside itself
http://lists.squeakfoundation.org/cgi-bin/mailman/listinfo/seaside-devMaybe you also want to have a loook at my Bootstrap project for Seaside
these days as it wraps Twitter bootstrap which is also "mobile first" these days.
Sample and link to the project can be found at:
http://pharo.pharocloud.comIf you want to run it locally just use a fresh Pharo 3.0 image (get.pharo.org or files.pharo.org)
and load it from the config browser (World menu -> config browser -> Bootstrap).
Have fun
Torsten