as already written in the comment at Gramps blog I downloaded the new 3.4.1 version of Gramps but can't get it working.
Machine is a 32bit Intel with Windows 7 Enterprise. Installation path of the portable installer was F:\GrampsPortable
The installer went through without any problems but trying to start the GrampsPortable afterwards didn't work. Just got a popup from WIndows telling me that python crashed.
I investigated a bit and started python from the commandline with gramps.py but it crashed while trying to convert the calendar name entries from ascii to unicode ( ggettext.py line 89 ) as the strings contained German special chars. I guess this is a general Gramps bug and not introduced with the portable Version thus I also reported it here: http://www.gramps-project.org/bugs/view.php?id=6038
After 'fixing' the unicode problem python still crashed but this time with a DLL not found error when it reached the 'from glib._glib import *' statement in the glib.py file.