I just released 0.0.8 and put a real selling offer online right now for 10 MSC @ 0.2!
It's hosted on address 1EAuHj8Z6rTCHPxXfaGzzPsZevC2mg1XAj. I am guaranteeing this offer, which means that if you buy it and it becomes invalidated because of a spec change at a later date I will return the Bitcoins back to you. Version 0.0.8 can be used to try and purchase this offer.
Prove I own the address:
GzhVvJFfYXTDtPyuqdkOFXp+EA2+7mK/uOhCgj/Tg37cAB97Lf0xgzuqZhC5Om0Ghjgi9AP1/1U7p3WeLaHDLVA=
Sold by Tachikoma
Awesome! I just created a purchase offer for 0.1 MSC:
https://blockchain.info/tx/87018464d016a067e5c8fedc07551c027bd011f43f6d3a02e9a1e252b551ba82Let's see what happens.
EDIT: Should I wait for my purchase offer to appear on Mastercoin-explorer before I send payment?
You need to wait for 1 confirmation, and make sure it's accepted as valid by
http://mastercoin-explorer.com/ and/or other sites. If the purchase offer is accepted. Then it's save to send your payment to confirm the purchase.
It doesn't help there hasn't been a block for 51 minutes

Alright, will do that. Another question: is it possible somehow to send payment directly from the Mastercoin wallet app?