Whether a defendant may appeal an adverse pretrial motion determination despite not reserving the right in writing under Rule 11(a)(2)

QUESTIONS PRESENTED Whether, in a federal criminal prosecution, a defendant who has not reserved in writing his right to appellate court review of an adverse determination of a specified pretrial motion, pursuant to F. Crim. P. 11(a)(2), but who has been specifically advised of such right to appeal by the District Court itself, without objection by the government, may in fact appeal the underlying adverse determination of a pretrial motion. i