Are you still looking for beta testers?

I used deribit and Bitmex to trade on leverage, and I'm certainly looking for something with more pairs. Are you planning on adding more altcoin pairs in the future, or are you set in stone in regards to only accepting ETH and LTC for margin trading?

Also, could you explain what a "Cryptocurrency Value Depreciation Swap" is? What would be the difference or advantage of holding this swap in comparison to shorting traditional perpetual derivative contracts (or futures)?