JOINT FILING AGREEMENT Dated May 4, 2007 Re: Joint Filing of Schedule 13D

Exhibit 99.A

JOINT FILING AGREEMENT

Dated May 4, 2007

Re: Joint Filing of Schedule 13D

This will confirm the agreement by and among all the undersigned that the Schedule 13D filed on or about this date with respect to the beneficial ownership of the undersigned of Common Stock, par value $0.0001 per share, of Remote MDx, Inc. is being, and any and all further amendments to the Schedule 13D may be, filed on behalf of each of the undersigned.

In accordance with Rule 13d-1(h) of the Securities Exchange Act of 1934, as amended, the undersigned agree that

(i) each of them is individually eligible to use the Schedule 13D attached hereto;

(ii) the attached Schedule 13D is filed on behalf of each of them; and

(iii) each of them is responsible for the timely filing of such Schedule 13D and any amendments thereto, and for the completeness and accuracy of the information therein concerning itself; but none of them is responsible for the other persons making the filing, unless it knows or has reason to believe that such information is inaccurate.

This Agreement may be executed in two or more counterparts, each of which will be deemed an original, but all of which together shall constitute one and the same instrument.

By:		/s/ Xxxxxxxxxxx X. Xxxxx
		Xxxxxxxxxxx X. Xxxxx
By:		/s/ Xxxxxxxx Xxxxx
		Xxxxxxxx Xxxxx

ANASAZI PARTNERS III, LLC
By:		X.X. Xxxxx, LLC,
		the sole Manager of the Fund
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Manager
				Name:		Xxxxxxxxxxx X. Xxxxx

ANASAZI PARTNERS III OFFSHORE, LTD.
By:		X.X. Xxxxx, LLC,
		the Manager of the Fund
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Manager
				Name:		Xxxxxxxxxxx X. Xxxxx

ANASAZI PARTNERS II, LLC
By:		X.X. Xxxxx, LLC,
		the sole Manager of the Fund
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Manager
				Name:		Xxxxxxxxxxx X. Xxxxx

CIMAROLO PARTNERS, LLC
By:		X.X. Xxxxx, LLC,
		the sole Manager of the Fund
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Manager
				Name:		Xxxxxxxxxxx X. Xxxxx

Xxxxxxxxxxx X. Xxxxx C/F Xxxxx Xxxxx UGMA
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Custodian
				Name:		Xxxxxxxxxxx X. Xxxxx

Xxxxxxxxxxx X. Xxxxx C/F Xxxxxxxxx Xxxxx UGMA
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Custodian
				Name:		Xxxxxxxxxxx X. Xxxxx

Xxxxxxxx Family 2005 Minority Trust, FBO Xxxxxxx Xxxxxxxx
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Trustee
				Name:		Xxxxxxxxxxx X. Xxxxx

		Xxxxxxxx Family 2005 Minority Trust, FBO Xxxxxxxx Xxxxxxxx
				By:		/s/ Xxxxxxxxxxx X. Xxxxx
						Its:		Trustee
						Name:		Xxxxxxxxxxx X. Xxxxx

Xxxxxxxx Family 2005 Minority Trust, FBO Xxxxxxx Xxxxxxxx Xx.
		By:		/s/ Xxxxxxxxxxx X. Xxxxx
				Its:		Trustee
				Name:		Xxxxxxxxxxx X. Xxxxx