Big stuff happening around here lately!  Liam has been getting up on all 4's, instead of just one or the other, and he acted like he was trying to take a step at day care the other day.  Next step is crawling!!  He's been getting on all 4s for about a week or so now, but just finally got to see it for myself last night...he's much more concerned with me picking him up than showing off his new skills.
We get shown how to use the theratogs next Thursday, I'm hoping that that helps reaching the next steps come quicker!