Actually, it arrived on Saturday, but since I rarely publish posts on the weekend this is the first chance I've had to say anything about it.
I hate to say this, but I wasn't all that sure the guys at WaterMelon were going to keep their word and send me a replacement cart. A part of me thought I had been scammed, although in retrospect I guess that was kind of a silly thought to have considering I did receive the professionally produced case and manual.
As for when I'm finally going to be able to play this homebrew RPG, well, that'll probably have to wait until I can get my parents to ship me my Genesis or until I buy a Sega CDX (a sexy little system that I've wanted for quite some time).
For more information on Pier Solar, read this post or this post--or go to the game's official site, where you can order a copy, too, if you so choose.