布小熊

http://www.dpreview.com/news/0708/07082002canonsd870is.asp

European name: Digital IXUS 860 IS (replaces Ixus 850IS)
US name: SD 870 IS Digital ELPH (replaces SD 800 IS)
Not to be confused with: SD 850 IS (aka IXUS 950 IS, which is different to the SD 950 IS of course). Canon, please sort out your naming of IXUS/ELPH/IXY cameras?

http://www.dpreview.com/reviews/canonsd870is/
It's selling for about $290 - $350US on all the online store listed in dpreview.