Sony introduced the 3.5 inch floppy disc in 1981. Last week, Sony Japan announced that the production of floppy discs will end on March 6, 2011. Sony stopped the production of 3.5 inch drives last September. Hitachi Maxell and Mitsubishi stopped producing floppy discs last year. So you better stack up if you're not using other drives and media such as a SD or MMC interface!
Relevant link: Article at Sony Japan