My little one was colicky for 3 months. Nothing solved the issue because she was just producing huge amounts of gas in her stomach. We tried pretty much everything that we could find. When your baby's crying you're happy to spend all your savings to make the baby happy and gadget places know that.
Try a little baby bouncer (we had one from Fisher Price) combined with the vacuum should do the same things and cost a lot less.
Gripe Water helped a little but you can use chamomile and ginger tea. Of course finding the right swaddling technique helped some. We tried a number of different blankets and this one was OK but not great
http://www.colicshop.com/miracle-blanket.shtml.
The best thing for Tatiana was the football carry. I would put her chin in my hand and lay her on my arm. Then I'd gently hold her cheeks so she wouldn't flop around and pat her back while rocking. I'd carry her on my arm for hours while Nataliya slept and then when it was my time to sleep I stayed on the couch alone
The good news is that Tatiana stopped crying one day and she's been healthier then other kids ever since.