My aunt lives in Pompano Beach. Haven't heard from her since Friday morning even though I've emailed her several times.
I live in Orlando.
Don't worry about her too much. In some cases, the cable is down. We lost our cable modem during Hurricane Charley. If she has a telephone modem and not a cable modem, we lost out telephone line for two days with Hurricane Frances.
Our electricity came back on late Monday after being out for two full days.
No sense worrying too much--it probably is lack of communication ability.
FWIW my mom rode out the storm at her nephew's house in Ocala. They still don't have cable and they just got back their phone and power last night.
Got through to my mother in law in Plantation on Sunday.(about 20 minutes away if you're familiar with the area. Lost power for a day, but other than that she seemed to think the area fared well.
Your Aunt probably does not have electricity restored yet.
The bottom line, though, is that your aunt should be OK.