Just read a pretty detailed report on Biyombo who worked out with a bunch of other bigs:

CHARLOTTE -- Working out for the third team in three days, Bismack Biyombo continued his recovery from a poor showing at the adidas Eurocamp in Treviso, Italy, by flashing the athleticism that had NBA scouts and fans drooling after his Nike Hoop Summit performance in April.

Biyombo was a part of a six-man workout in Charlotte in front of coach Paul Silas, general manager Rich Cho and owner Michael Jordan. Matched up against Marcus Morris, Jordan Hamilton, Chris Singleton, JaJuan Johnson and Thomas Coleman, Biyombo did what one might expect -- blocked shots and threw down dunks in spectacular fashion -- but he also managed to display a shooting touch that was better than advertised. Biyombo worked out for the Raptors on Monday and the Pistons on Tuesday.

Prior to those team workouts, Biyombo held a one-on-none workout at the adidas Eurocamp that drew criticism for showcasing his weaknesses (shooting, dribbling) rather than his strengths (rebounding, shot blocking). From the free throw line, Biyombo showed a touch that would seem to alleviate any fears about a "Hack-a-'Mack" strategy from the opposition.

"I guess the biggest thing that surprised me was his offense," Silas said after the workout. "People said he had no offense at all and I saw a lot of offense today. Shooting his FTs, I told him just to follow through. He followed through and made two free throws right away."

Not surprisingly, his ability to catch on the wing and go to the basket is suspect at best, but given his skill set it's unlikely any team drafting Biyombo would ask him to do that. In six opportunities from the wing, Biyombo had difficulty putting the ball on the floor and beating his man to the basket, scoring just once on and up-and-under move against Johnson.

"I'm working on everything. My post moves. My shot. I'm trying to do everything on the floor," Biyombo said. "My offensive game is not the best that I can just come inside the team and start. I can do some things on offense, I can shoot the ball, just not that impressive. I can make some post moves; it's not impressive.

"I have a long summer, so that's what I'm going to do in the summer."

There's more details on the workout here: http://aol.sportingnews.com/nba/feed/2011-03/2011-nba-draft/story/bismack-biyombo-2011-nba-draft-workout-congo-spain

Read more: http://aol.sportingnews.com/nba/feed/2011-03/2011-nba-draft/story/bismack-biyombo-2011-nba-draft-workout-congo-spain#ixzz1Q52U4BvV

Here is a link to some video of him doing drills.
http://www.nba.com/bobcats/video/2011/06/22/110622biyombohighlights-1741567/index.html

He's supposed to meet with the Knicks tomorrow!