Jack -
That's right, while typing the icon & text below the entry field changes from "create a new reminder to this" to one with a different icon mentioning chrome as the app.
However, isn't that a bug in Alfred's workflow: it should not act on the return key before the other characters have been fully processed? It seems quite fixable also as this is likely completely under Alfred's control.
BTW, I don't type that fast, and my MB Air isn't that slow - others have perhaps seen this also.
Thanks.
Peter
ps: this all being said, your flow is very nice. Is it easy to add priorities (rememberthemilk does that with !1, !2, !3 in their quick entry?