1. When you move a retirement account, the typical process is that everything is liquidated and moved; then you buy new mutual funds (or other assets) in the new account. Since it's in a tax-sheltered account, there's no concern over taxable events when you liquidate/sell. So if you are working on your investment policy statement, now's a great time!
2. With my LLC I had a Solo 401(k) and the limits for employer contribution are really high, so depending on your overall profits, take advantage of all that tax sheltering! (I had my solo 401k with Vanguard.)