So,these parallel block chains of Nxt can be called Nxt Blocktree?
No - there seems to be quite a bit of confusion about parallel chains - they are not "connected together" beyond perhaps "checkpoint" AMs being sent to the master chain.
Think of it like Bitcoin and Litecoin - so people talking about "spreading the load" across chains are actually saying that you would go to buy something with 1 BTC and say 100 LTC - personally I don't think any vendor is going to want to bother with that so such ideas are not helpful.
@ChuckOne - TF will be implemented in the main chain so you needn't care if another chain decides not to use TF as you don't need to buy any of those coins (it doesn't matter what you *think* about how someone should create a coin they are going to create one anyway if that's what they want to do).
All of the parallel blockchains can be backed by NXT directly, according to cfb.
BTC and LTC is not a fair comparison. Mining power used to secure BTC cannot be used to secure LTC, for example. In NXT, anyone can support X number of chains simultaneously. It also makes more sense if you think of parallel chains on a more global scale. RMB is not useless because USD is the dominant currency accepted by most vendors, it has its uses within it's sphere of influence. The same with parallel chains - these chains will not likely be straight up clones of NXT (although that is allowed), but they may be tied to a certain market or geographical location.
EDIT: The question also remains as to why we
need a single 1000 TPS chain. If I'm going to China, it's really not much trouble to spend 1 NXT to convert any amount of NXTUSA to NXTChina. Why does everyone have to process transactions they are completely unconcerned about (besides profitability, which I mentioned in a previous post) and suffer all the disadvantages (high-bandwidth, bloat, etc.) Let the market forces decide, and all the chains will be secured just as much as they need to be.