The
GFC (Global Certification Forum) just unveiled another Asus - most likely -
Windows Mobile smartphone which will be available in two flavors: as the Asus
P552 and as the Asus P552w.
Most likely a Windows Mobile smartphone since so far, all
Asus
P-Series smartphones were based on Windows Mobile Professional (touchscreen).
Othen then that, not too much is known except that the GCF confirmed that it
will be a triband GSM (900/1800/1900) MHz and singleband UMTS (2100 MHz) mobile
phone supporting MMS and browsing. The supported frequencies speaks for a launch
in Europe and Asia only:

Since it's listed as a P-Series phone it's unlikely that it will be an OEM
version for a carrier but who knows. Further information like design and release
date are completely unknown.
Cheers ~ Arne