Documents have leaked onto the web that indicate that the upcoming Sanyo MM-5600 will include a USB Cable. This will tie into new PictBridge technology allowing the phone to even print to printers without a PC (provided the printer supports PictBridge as well).
Sanyo will utilize a new dual-mode USB port technology introduced in the Sanyo MM-7400. Sanyo 7400 users can dial ##33284# and select USB Mode to see the new menu. While the 7400 defaults to Modem (used for dial-up, firmware updating, etc), the 5600 is expected to default to Composite (advanced sync, enhanced content transfer). Of course, you can change between the two based on what you want to do with the device.
It is unknown if the Sanyo MM-7400 will be enabled to support PictBridge, but the support for the device (as well as FOTA to deploy the updated software product-wide) is there as well.