My only problem with Sony is that they use a lot of proprietary stuff that's annoying since you need adapters (not the case with all their stuff). Such as the Produo cards that my sony cybershot point and shoot takes. Little things like that make me not buy sony (the cybershot was a gift).
The only sony product I use is the a350 I own.
Nothing else. The lenses are even all Minolta. The grip is Meike. The memory card is a Lexar CF - I'm pretty sure on this model I'd need an adapter to even use MemoryStick. I don't even use Sony's RAW processor.
We got rid of our x-box for a playstation 3. I was happy that, unlike the X-Box, I could replace or upgrade the hard drive with any hard drive, and that I could use any bluetooth or USB keyboard.
I bought my mother in law a Sony P&S. We didn't buy a card because it took the same SD card that she already had in her Kodak.
I keep hearing about this proprietary complaint, and maybe at one time it was true, or for some products. But I have
never run into it myself; frankly, I wish people would just drop it.