Google Wave. The UX was so bad that despite all the massive hype it failed very quickly. I'll bet a lot of people here have a soft spot for Wave, but if you ho

Google Wave. The UX was so bad that despite all the massive hype it failed very quickly. I'll bet a lot of people here have a soft spot for Wave, but if you honestly compare its UX to something modern you've been complaining about, you'll see it was pretty convoluted to use.