I'm shopping for my first tablet and I am most impressed with the Toshiba Thrive. It has the following features which differentiate it from other tablets:
- Rubberized case for durability and firm grasp.
- All the standard ports you want: USB, HDMI, and mini-USB.
- SD card slot, good for camera hookup or aux file storage.
- User-replaceable battery.
On the downside, it's thicker and heavier than other tablets, but that's the tradeoff for a more versatile unit. Also, battery life is not as good as other brands, but sufficient for normal use. There was a problem with sleep mode in the first production run that came out last month, but Toshiba has since released a software fix. Current version is WiFi only and does not support 3G/4G, but 3G/4G is likely coming in their next version.
If I were to use this for trading, I would use it with a remote client like LogMeIn Ignition to connect to a home or office-based trading computer, on an exception basis only. I would not normally rely on a mobile tablet with a wireless internet connection for routine trading.
On balance, I think this is the best tablet for a business user. Other features often discussed in tablet reviews, like multimedia, camera quality, and case colors are secondary to me.
I haven't made my purchase decision yet, but leaning this way.