B. Background Despite effective treatments, studies continue to demonstrate that asthma is poorly controlled,1,2 though marked variation in the control achieved in UK general practices suggests that improvement is possible for the vast majority of patients.3 Psychosocial factors such as denial of illness, low outcome expectations 4,5 and hectic lifestyles, exacerbated by limited knowledge, poor self-recognition of symptoms and discordant attitudes, influence patients' ability to engage in self-management with resultant poor concordance with monitoring and treatment.6,7 Interventions involving biofeedback can address these barriers by objectively demonstrating symptom severity and the impact of medication compliance.8 A Cochrane review demonstrates that self-management education linked with structured care improves asthma outcomes.9 Despite self-management education,6 in real life, compliance with traditional diary monitoring can be as low as 6%,10 and results are often fabricated.11 Electronic recording may improve compliance,12 with over two-thirds of potential readings recorded over a 72-week trial.13 Increasingly pervasive throughout society, mobile phone technology provides a convenient, portable communications medium. Mobile phone-based monitoring with supporting biofeedback, appears able to engage patients in their management, resulting in high levels of adherence and patient acceptability,13,14 with many patients welcoming the innovative care.15,16,17,18 Integrated within a structured care protocol, this has the potential to address the barriers of poor adherence and low expectations and thereby to improve patient outcomes.