As of now, here's a list of players who have been confirmed as signed by the Cubs from a mix of Baseball America and various other sources (newspapers, Twitter, etc.):

03.0098 Zeke DeVoss, OF, Miami (FL)
05.0159 Tayler Scott, RHP, Notre Dame Prep HS (Scottsdale, AZ)
06.0189 Neftali Rosario, C, Puerto Rico Baseball Academy (Gurabo, PR)
07.0219 Trevor Gretzky, 1B, Oaks Christian HS (Westlake Village, CA)
09.0279 Garrett Schlect, OF, Waterloo HS (Waterloo, IL)
10.0309 Daniel Lockhart, SS, Hebron Christian Academy (Dacula, GA)
13.0399 Darien Martin, OF, Brookwood HS (Snellville, GA)
15.0459 Justin Marra, C, Power/St. Joseph HS (Toronto, ON)
16.0489 Rafael Lopez, C, Florida State
17.0519 John Andreoli, OF, Connecticut
18.0549 James Pugilese, RHP, Mercer County CC (NJ)
19.0579 Paul Hoilman, 1B, East Tennessee State
20.0609 Benjamin Klafczynski, OF, Kent State
21.0639 Andrew McKirahan, LHP, Texas
22.0669 Ethan Elias, RHP, Grand Trunk HS (Evansburg, AB)
25.0759 Rhoderick Shoulders, 1B, State JC of Florida
26.0789 Michael Jensen, RHP, Hartnell JC (CA)
27.0919 OF Taiwan Easterling, OF, Florida State
30.0909 Arturo Maltos-Garcia, RHP, Lamar CC (CO)
32.0969 Peter Levitt, RHP, Mt. Olive (NC)
33.0999 Sheldon McDonald, LHP, British Columbia
36.1089 Travis Garcia, U, Martin Methodist (TN)
38.1149 Casey Lucchese, RHP, College of Charleston
40.1209 Patrick Francescon, RHP, Trevecca Nazarene (TN)
41.1239 Austin Urban, RHP, Des Moines Area CC
42.1269 Brad Zapenas, SS, Boston College
44.1329 Kenny Socorro, SS, Marshall
46.1389 Scott Weismann, RHP, Clemson

Notable names who are unsigned (officially) so far include Javier Baez, Dan Vogelbach, Tony Zych, Shawon Dunston Jr., Dillon Maples, Bradley Zimmer, and Ricky Jacquez.

The signing deadline is midnight Monday.  With any luck, we'll have reason to celebrate when the deadline passes.