I'm playing on a timeline as well, although mine is much more forgiving...I realized that PAX East is coming up and there will probably be hundreds of people to Streetpass with (I connected to 140 people last year playing Pokemon Black/White just waiting for the Keynote to start)...actually started putting some good time into Pokemon Rumble Blast.
Still not going to make any of my Top 10 lists or anything, but it's better than the first impressions I gave it. Still a grind fest, but the Toy Pokemon are pretty cute. :-P