We are working on defining low pin count versions of our next generation architectures but we're not releasing anything smaller than the 48QFN/48SSOP size devices any time soon. We're working on new products this year based on the PSoC 3/ PSoC 5 architectures but again, we won't see these devices in the marketplace until the earliest, 1H2011.
That said, we're still working on new PSoC 1 devices as well and there are parts in the low-pin count packages should these devices support your system requirements.
There's huge demand for low pin count PSoC in the horizontal market space. If Cypress makes it available like the Atmel's AVR or Microchip's PIC controller it will surely do well...