Apple didn't say that the iPad 3G support included Verizon, but that hasn't stopped speculation that the two companies are still negotiating to bring the multimedia tablet and ebook reader to Verizon's wireless network.

Apparently sources inside Verizon are claiming talks are underway with Apple, according to Silicon Alley Insider.

When Apple introduced the iPad at the end of January, the company showed off two models: one with Wi-Fi only, and a second with Wi-Fi and 3G support. Apple said the iPad is unlocked, allowing users to subscribe to any compatible carrier's 3G service, but highlighted a deal with AT&T that gives users 250MB of monthly data for US$14.99, or unlimited data for $29.99.

Verizon, however, uses wireless network technology that isn't compatible with AT&T's, leaving potential customers wondering if Apple might surprise buyers with another iPad model that is Verizon ready, or reveal that the iPad's 3G gear includes Verizon support.

Apple's Wi-Fi iPad is set to ship in March, and the Wi-Fi plus 3G model should ship about 30 days later. Since there isn't any way to confirm the information from the Verizon insiders, their claims should be treated as another rumor -- but still an interesting possibility for iPad buyers looking for alternatives to AT&T.