Here's further info on what to expect when BoMa opens in the South End this week from neighborhood blogger BosGuy. He shares a few sample menu items from a recent preview dinner, including grilled swordfish with shrimp, gnocchi and artichokes in lobster jus ($27). But perhaps the most exciting news is that BoMa plans to make its own grape soda. He writes " I was tempted to try the 'Purple Cow' made with house made grape crush, vanilla ice cream, pop rocks (you read that correct) and a pistachio cookie." Despite reports that BoMa would open last week, Eater previously heard that BoMa would soft-open with a limited menu this week, and BosGuy says it will happen tomorrow.