I mentioned NPD's data for video game sales in Short Takes this
morning, but I wanted to piece together something a little more
comprehensive. This required me to scan a number of news story
about the data, as none of them supplied all of it. Here's what
I came up with.  The market NPD's data covers the US market
only.  The comparisons As always, growth comparisons are year-
over-year (i.e. with March 2007 in this case).  Total sales The
video game industry generated $1.7 billion in revenues, up 57
percent.  Hardware sales Overall, hardware sales grew 46
percent, to $377.9 million, from $551.3 million. Note that game
accessories accounted for $220 million, up 58 percent.  Top
selling video game hardware 1. Nintendo Wii - 721,000 units
(Biggest non-holiday Wii sales month yet) 2. Nintendo DS -
698,000 units 3. Sony PSP - 297,000 units 4. Microsoft Xbox 360
- 262,000 units 5. Sony PlayStation 3 - 257,000 units (Double
the number from a year earlier) 6. Sony PlayStation 2 - 216,000
units  Top selling video game a