REX, the Robotic Exoskeleton, is designed to help those usually bound to wheelchairs stand up and walk, and it should be commercially available later this year.
At $150,000 USD, REX is by no means inexpensive, but it does offer wheelchair users a practical and (almost) readily available means of getting out of their chairs. Other technology like HULC (which isn't intended for paraplegics anyhow, but rather to enhance strength and performance) are still in testing and could be for awhile. REX will go on sale in Auckland later this year and should be available worldwide by mid-2011.
I am speechless, very coolio, if you have three minutes, watch the video. This is fricking awesome.