Sony today expanded its handheld line, adding the CLIE PEG-T615C and PEG-S360 to its product line. The CLIE PEG-T615C handheld, only half-an-inch thin, claims to to be the “world’s thinnest color Palm-Powered device,” featuring a high-resolution (320 x 320 pixels) TFT color display (with backlights). Both the CLIE PEG-T615C and the monochrome CLIE PEG-S360 offer 16MB of internal memory with a Memory Stick slot of course. The CLIE PEG-T615C, available in royal blue or brushed silver, is due later this month for $400, while the monochrome CLIE PEG-S360 is due in Febraury for about $200. Both are available for pre-order via the Sony Website.