today, 24H HIGH price
$5.86 or 0.00213 BTC

Is there only this App Wallet for Chrome? Or is there also something you can install to your computer? Or a good and save online wallet?

The features provided are quite interesting. Let alone about Integrated FIAT Gateway enabling direct withdrawal of money. Good luck and move on 

Is the signature campaign still up to date?

There is no limit to investing.  You can buy as many WAVES as you like.

Is this the Waves signature campaign which you are looking for? https://bt.irlbtc.com/view/1943988.0
But check if there are already 1000 members included, that is the maximum

There is a new signature camp here:  https://bt.irlbtc.com/view/1943988.0

Waves Crypto currency is one of the best available and offers the best price. Buying a wave now, stock it up and sell later at an increased is really the best advice to anyone into crypto currency trading.

I keep getting an error on waves exchange error "order has not been created" I'm trying to buy WTC with my BTC. What gives guys? any advice would be great.

Expanse EXP as well, I am the community manager and interesting in having Expanse added to Waves. We have lots of developers and can help with this if needed later. (I have been testing Waves out and hold a fair amount)

Basically, look at the tokens JAXX is adding, they are adding tokens and coins with strong communities. You get all those on Waves and lots of people would use it.