The Home Run Tracker has been updated through to April 17.
I also threw together another kind of tracker, although this one might not be quite as interesting.
It's called the 100 Pitch Tracker and it basically displays the pitching lines for starters that have thrown 100 or more pitches during their starts. So for example, you can easily find that Yuta Omine threw a league high 155 pitches on 4/14/2010 against the Nippon Ham Fighters. Likewise, you can also find out how many Lotte starters have thrown 100 or more pitches so far this year.
Like I said, nothing revolutionary, but I thought someone out there might be able to find some use for it (the 100 Pitch Tracker should also be up to date through 4/17).