What it does is that allows you to set a reminder in the future to do something – at given time and date: buy X, call Y, do Z. Nothing to earth-shattering about that.
What is neat is the way how you do it. Actually, many ways:
1) old fashioned: use web site, enter reminder. Just type text and reQall will extract both activity (buy / call etc) as well as date and place it in appropriate category. And when time comes you will be notified: either via email, or via SMS or even by some of the IM services. Currently supported are Yahoo, Google Talk, Jabber and AIM.
2) modern: use iPhone app to type in reminder. Same goodies as wit web, only – unlike Web – you have the phone with you available quickly at the moment when you actually need to remember something.
3) modern AND cool: use the same iPhone app, and speak up to 30 second message. It will be converted to text and then analyzed same way as typed text. I am not sure whether it is automated translation or some poor fellas in third world country and listening and typing it in. The understanding is VERY good. It even handles non-native speakers of English with strong accents (like myself) with surprising success rate. I had occasionally some question marks indicating that Person’s name or local place was not understood. For this occasion, you can always listen to your own audio
You can also subscribe to daily jots that sums up your upcoming events.
Best of all: it is a free service. There is a pro version for $2.99 a month which adds some nice features. I am seriously considering to go for Pro just to make sure they can survive – as long as I find that I use it more than 1-2 times a week, I am in.
Give it a try, it may be worth one small chai latte a month.