The primary difference between the two lies in the rear display. The TL225, which will sell for $350, offers a 3.5-inch touch-screen display with a very high 1,1152K dot resolution and haptic feedback when touched. The TL220, priced at $299.99, also offers a touch-screen with haptic feedback, but at a smaller 3-inch size and more standard 230,000 dot resolution.
Screen size is measured diagonally. The camera with the biggest LCD screen is the HP Photosmart R937; its screen measures 3.6 inches. There are many cameras that have a 3.5 inch LCD, which is almost the same size. Those are the Sony Cyber-shot series, Nikon Coolpix S60 , Samsung Digimax Pro 815, andSamsung DualView TL225.
If you're looking to buy it at Best Buy with a warranty it's on sale (for now) for a little under $303 with a 2 year Geek warranty.
Panasonic Lumix DMC-TS1 (silver) Canon PowerShot S95 Sony Cyber-shot DSC-HX5V Canon PowerShot S90 Samsung DualView TL225 (orange/black) Sony Cyber-shot DSC-WX1 Panasonic Lumix DMC-ZR1 (silver) Sony Cyber-shot DSC-H20 Fujifilm FinePix F200EXR Panasonic Lumix DMC-ZS7 (black)