I didn't even know this memory card existed until my son bought a new Sony cell phone. It's a cell phone, text messenger, MP3 player, still camera, movie camera, sound recorder, games player, Web browser, and more.
For storage, the phone uses Sony's new M2 Memorystick memory card -- 512MB on a chip about the size of my thumbnail. Easy to lose, eh? To transfer data, it comes with a Memorystick adapter to fit card readers.
Naturally, the week after my son buys the 512MB phone, the 1GB model comes out.
Naturally, the next thing my son wants to buy is the 1GB memory card to hold more music. (Apparently, his year-old 512MB MP3 player is insufficient.)
This morning I searched around to see how much M2 costs. At this point $0, because neither Sony.ca nor FutureShop.ca nor BestBuy.ca carry it. From Sony's press release, I see that (1) the 1GB card began shipping in May, 2006; (2) it's priced similar to the Memorystick PRO Duo; and (3) "Availability and prices will vary from country to country."
FutureShop.ca prices the Memorystick PRO Duo between CDN$60 and $80 for 1GB, depending on the vendor: SanDisk $60, Lexar $70, and Sony $80.
So now you know about Yet Another Memory Card Format, and that it's not (yet) available in Canada, even though devices that use it are sold here. Thanks, Sony.