Tweetvolume is no Tweetscan in terms of benefits. Very like Compete.com, Tweetvolume tells you how many times a word has been said on the Twitter shpere. As you can see below, you can also compare up to 5 words:
Unfortunately, Tweetvolume doesn’t offer to embed your query results for easy sharing. You have to capture and re-size the image.
Tweetvolume really is for quick surfing of semantic trends on Twitter. There aren’t no detailed analytics, no feeds to grab, and no enhanced search features.
But it’s a clear and easy way to measure the popularity of a term. I hope they add more feature to it in the near future!