There are more keys to the book of Acts than just communal living. Many have went off on a "kick" to "restore" one of these missing keys, only to find their results just as bad as before. Some say, "The early church met in houses, that's the key to Apostolic Christianity!" but nothing ever changes since they are taking the same unrevived people from a building to a house. Other's say, "Communal living is the key!" and again, even Buddhist monks live in community.
I believe the book of Acts is supposed to be the ultimate "blueprint" for the church, so to speak, but we have to look at it without being biased to exalt one "key" above another and we have to put things in proper perspective. There are many keys in the first few chapters, such as:
1. The Apostles and disciples involved had already spent years with Jesus -they knew their Lord well, were personal in thier relationship with Him, and were utterly and completely submitted to His Lordship (obedience was not an option).
2. The first thing that starts off the whole book is receiving the fullness of the Holy Ghost, the baptism in the Holy Spirit and fire. This is where their power came from. Take that away and the book of Acts wouldn't exist, because that's where it started. The Holy Ghost is the One who produced in them selfless love, burning passion for Jesus, and power for ministry. We won't come close to experiencing what they experienced unless we are baptized with the same endowment of power from on high.
3. They sold their extra earthly possesions to distribute to brethren who lacked, obeying Jesus and living seperate from this world, looking with a steadfast hope constantly for their Lord from heaven.
4. They shared all things in love including thier lives with one another.
5. They were active in witnessing to the lost and winning souls.
6. They had genuine signs, wonders and miracles in their midst.
7. They had a deep, deep FEAR of God upon them all.
8. They had anointed, godly leadership.
9. They continued steadfastly in the Apostle's doctrine, in fellowship, in breaking bread (Lord's supper) and in prayer.
10. Etc, etc.
As you can see, there are many keys. But before any given community can experience the Book of Acts, it all has to start with knowing Jesus personally and being intimately acquainted with Him, and receiving a mighty baptism of Holy Ghost power. I believe the other keys will even flow from meeting these two if they are met in fullness corporately.
