Can anyone tell me what happened in the last three days here? Any reason for the recent little price drop?
What about something like this
http://www.nxtcoins.nl/50-2/ for Counterparty?
And another, more general question regarding the DEX: Can I atm only trade BTC to XCP on there or more? Let's say n the future there will be more con (LTC for example) can I then, after I bought LTC with BTC on the DEX, withdraw those LTC into my LTC wallet?
Not really. You can only trade assets issued in the DEX (BTC is the only exception), not other coins, unless someone issues an asset here to 1:1 map that coin and you trust him/her.