Engadget somehow got hold of the iPhone 3G firmware v 2.0. Apparently the iPhone new firmware has been released to major carriers partners and it already has been dissected to the bone. Most noticeable changes and features are:

the details:

• Sony SP9T antenna switch for GSM / UMTS dual mode
• ARM 1176JZF-S – Main CPU (same as in 1st gen iPhone)
• Infineon PMB6952 / S-GOLD3 six-band UMTS / HSDPA transceiver (as we’d heard)
• Murata LMRX3JCA-479 tri-band amplifier (we’re assuming for the 3G)
• Skyworks 77427 chip – UMTS / HSDPA tx 1900MHz, rx 2100MHz
• Skyworks 77414 chip – UMTS / HSDPA 1900MHz
• Skyworks 77413 chip – UMTS / HSDPA 850MHz
• Internal build model number: n82ap (1st gen iPhone was model m68ap)
• UMTS Power Saving option – on or off
• Hooks for Global Locate Library (GLL), software that handles A-GPS related commands for the host processor

I do want to mention that this is still speculation and as long as we don’t have the device in public, it’s just a matter of waiting ti’ll monday evening :)