I can see a quite strage behavior with wptouch. Some months show their correct name in the calendar icon, like "NOV 16". Others look like "DEZ_DEZEMBER_ABBREVIATION".
That happens on these months:
Dec, Oct, Jul, Jun, May, Mar, Feb, Jan
I'm using German edition of wordpress 3.5 with wptouch 1.9.6
Language - auto detect
custom user agents: iemobile
thank you in advance
by the way: great plugin :-)