I wasn't going to blog about Mr. Jalapenos, the new Mexican rest. on Merrimack, until I was 100 percent sure when it's opening. But seems pent up demand for pico de gallo is killing some of you. Here's what I know: Owner Ricardo (no relation to Gorham St. trattoria) is shooting for next tuesday. But I wouldn't bet the whole enchillada. The hold up has been inspections —electric, health and the litany that surround a rest. opening. As of Wed. he had passed electric (the hardest hurdle) and said w/some confidence he will open Mon. or Tues. But we've heard this twice already, so I cannot post w/ the accuracy I uphold this blog to that made-to-order tortillas and chili relinos will be avail. so soon. But the place looks great, sunny, intimate and free WiFi too. Put it this way, by April Jalapeno will be popping. Now what has anyone heard about Bad Dawgs, the hotdog shack slated to open this month on the same block?