[Goldiethedog]

The TM10 is smaller. Any reason to go for the SD20 over the TM10? The TM10 doesn't appear to use a Leica lens.

[Mandark]

You seem to have got these Panasonics all mixed up. The SD20 uses SD cards only and has no built-in flash memory. The TM20 has built-in 8gb flash memory and also takes SD cards. The SD10 (SD card only) and TM10 are pint sized but have proper camcorder spec. All these models have a Leica lens.
SimplyDV Review: Panasonic HDC-TM10 1MOS AVCHD Camcorder

[Goldiethedog]

Hi Mandark. I understand the difference between the SD and TM models but it seems to me that the SD10 and TM10 have all the quality of the SD20 line but in the smaller body.
My question is does the SD20 line have any advantage over the smaller SD10 line?