I saw the memo too saying the 24th but who knows why it's starting today.
Saw this on Information Week:
Starting today, however, Droid owners will gain access to Flash. Verizon Wireless said in an email to InformationWeek, "Verizon Wireless has begun pushing an update today to the Droid by Motorola (introduced November 2009) that will allow customers to download Adobe Flash 10.1 via Android Market. Flash Player 10.1 provides access to millions of sites with rich content including animations, casual games, videos, rich internet applications, audio and much more."