Mass Effect 2 - The Adept @ IGN

Starmine76 from Bioware's ME2 forums points to an interview that IGN has made with Christina Norman, the lead combat designer for ME2. They discuss how the The Adept, the biotic user, will be redesigned in ME2. Christina talks about how you may change your class completey from ME1 to ME2, that you'll spend all your level up points improving your biotic powers since the armour and weapons skills have been removed completely. And you get access to more weapons.

Using your biotic powers can now be done without any cool down periods:  

IGN: What was the single most important aspect of the Adept's combat that you felt needed improvement for this sequel?

Christina Norman: In ME1 we had long power cooldowns, which meant there would be periods in combat where you couldn't use your powers for a long time. For low level adepts in particular, you'd use your 1 power, and then have no powers available for a very long time.

For Mass Effect 2 we wanted the adept to be able to use his powers consistently in battle. We added a shared power cooldown system that let us dramatically lower the time between power use. As a result, even at level 1 in Mass Effect you'll be able to use powers throughout every battle. This really helps fulfill the fantasy of the adept as a biotic warrior, capable of dominating the battle primarily with his biotic powers.