With the exception of very good TV's (I love my 27" Sony Wega) and pretty good stereo equipment, Sony doesn't seem to do anything very well anymore.
Their largest flaw is that they are bound and determined to make things that don't work and play well with others. Examples:
Betamax - enough said
MiniDisk - a great format and media but not available on any hardware other than Sony and as a result adoption was limited at best.
Viao Computers - Some great equipment, but a royal pain to work on or to get it to work with non-Sony peripherals
Clie - A Palm Pilot with a proprietary memory card format and a higher price. Wonder why they didn't do well.
Playstation 3 - the world is waiting and XBox360 is kicking your ass
PSP (Playstation Portable) - A very slick piece of hardware, but Target and Wal-mart have already stopped carrying movies for this platforms proprietary format
BlueRay - or as I like to call it "Betamax: The Sequal"
And now they're killing other companies hardware. You may have seen or heard the stories of the exploding Dell laptops. Guess who's to blame.
Sony seems to be rudderless ship. Can it be long before they completely run aground?