This is a cool game. I liked how untangling the blocks from the house paired with neatly stacking them in the truck. I saw below you wanted to add a timer and a score system, but you can go without one and still have a good casual puzzle game.
Besides tile rotation and faster scrolling, I would add somekind of mini-map showing the current state of the truck/house. Otherwise the player is forced to move 2-3 screen lengths just to double check which piece they need to grab next.
That all said, my favourite part is the clicking noise when you move, which is saying alot because the rest of the game is pretty good.