New German SIM with lowest rates: Maxxim - 8c/min land or mobile, 8c/SMS
 

Just saw this new SIM from Maxxim listed on the German Prepaid Wiki.

All calls to German mobiles or landlines as well as all SMS to German mobiles are only €.08. This basically beats everyone other rate out there for typical use, although GPRS is more expensive at €.49/MB in 10Kb chunks, twice as much as others like Blau. It uses the T-Mobile network.

And all international calls are still 1.99/min. Sigh.

Note that for short term use, Plus-Kom is probably better deal, as the SIM is €5 with €5 credit included, and €.09 flatrate for calls and SMS. I'm assuming these can be found at all Plus grocery stores, but haven't checked yet. It's basically the same rates as Blau, but the Blau SIM costs €20 (found at Saturn electronics stores).