RIM's BlackBerry Subscribers Top 2 Mln  TORONTO (Reuters) - The BlackBerry wireless e-mail device  is now being used by a record two million subscribers, less  than a year after it topped the one million market, Research In  Motion Ltd. (RIM) &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=RIM.TO qtype=sym infotype=info qcat=news"&gt;RIM.TO&lt;/A&gt; said on Wednesday.